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ghazi
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dadadadaaaadadaadaaddadaa
LonelyandForgotten
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so what shall we do.. i still cant find it :P
ghazi
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stop pretending , put up your questions now
LonelyandForgotten
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hahaha... no im not, seriously i cant find it :(
ghazi
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question?
LonelyandForgotten
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well, i guess i will just work on something else in math, i will do that when i find it :P
ghazi
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okay next science
LonelyandForgotten
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that powerpoint? i am going to do that tonight :)
ghazi
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huh
ghazi
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@LonelyandForgotten here
ghazi
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wait a sec :)
LonelyandForgotten
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haha this is funny :D
ghazi
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lol i am editing it, there are some grammatical mistakes, like in third slide, there should be comma after well
LonelyandForgotten
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sure, edit it the way you like :)
ghazi
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yea yea :D
ghazi
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here is your edited one, it is brilliant and indeed you are genius, just a few minor changes are there
ghazi
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first read it
ghazi
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and find the places where i have done editing
LonelyandForgotten
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yes i can see some :D
ghazi
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now maths lol
ghazi
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@LonelyandForgotten finally no maths, okay great
LonelyandForgotten
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yep, no maths today :P
ghazi
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okay
LonelyandForgotten
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can you help with ordered pairs? :/ thats easyy stuff, i cant do that :D
ghazi
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post your question please
ghazi
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then post what you can't
LonelyandForgotten
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okay well one is.. Determine whether the ordered pair (2, 15) is a solution of y = 4x - 7.
ghazi
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put the value of x=2 and y=15 if this satisfies the equation then it is a solution else it is not like
y=15, x=2
15=4*2-7
15 can't be equal to 8-7 which is 1 so as 15 can't be =1 therefore it is not a solution of this y=4x-7
LonelyandForgotten
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umm..okay i think i got that :D
ghazi
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next
LonelyandForgotten
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umm this... :D
A plumbing company charges $50 for a service call and $15 per hour. They went on a 3-hour job. How much did the company earn?
A. $195
LonelyandForgotten
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sorry..
A. $195
B. $165
C. $95
D. $65
ghazi
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well, $50 is charge and extra of $15 per hour so for three hours it will be $15*3=$45 and $50 is service call charge so total of $50+$45=$95 okay?
LonelyandForgotten
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hmm... wait a sec :D
ghazi
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sure , next please
LonelyandForgotten
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most of the questions are like this, Determine whether the ordered pair (5, 3) is a solution of y = 3x – 4. .... i just wanna know how to solve those :/
ghazi
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look in all these equations just put x=5 and y=3 actually the content of bracket (5,3) are the values of x and y (x,y) now if putting x=5 and y=3 in the equation y=3x-4 satisfies then it is a solution else not now put x=5 and y=3
3=3*5-4=15-4=11
3=15-4 which is not correct if we would have obtained 3=3 then it must be the solution but we got 3=11 which is false so its not a solution
ghazi
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clear?
LonelyandForgotten
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i dont get it :/ where did the 15 and 11 come from?
ghazi
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@LonelyandForgotten ??
LonelyandForgotten
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i am here.. :D
ghazi
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well at the place of x in the equation put x=5 and at y put y=3
now y=3x-4
put y=3 and x-5
3=3*5-4 ------------ 3*5= 15
3=15-4------------15-4=11
3=11 this is false , clear?
LonelyandForgotten
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okay it seems confusing but i will go over this a few times later, but thanks :)
ghazi
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just put y= its value and x= the value of x as in ordered pair in the equation and if both the sides are equal you will have it as solution else no
ghazi
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next?
LonelyandForgotten
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please can we stop for now.. i dont wanna do this :(
ghazi
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one more
LonelyandForgotten
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umm.. are you sure? :D
ghazi
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hahah am i sure come on keep asking
LonelyandForgotten
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This is Last one.. please
7. Use a table of solutions to find the ordered pair solution for y = 4x – 6 when x = 10.
A. (34, 10)
B. (10, 34)
C. (10, 8)
D. (8, 10)
ghazi
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no after this you're gonna do it unless you're finished :)
LonelyandForgotten
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nope im not even close to being done :P
ghazi
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if we put x=10 in the equation y=4x-6 we will get
y= 4*10-6 , just at the place of x put x=10
y=40-6
y=34 therefore your ordered pair is (10,34) which means when x=10 , y=34 clear?
ghazi
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hmm next ? unless you are finished
LonelyandForgotten
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yes i am finished, now thanks! :P lol
LonelyandForgotten
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actually no.. sorry :)
ghazi
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next
ghazi
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question ? :)
LonelyandForgotten
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wait please :(
ghazi
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okay :)
LonelyandForgotten
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whats a quadric eqaution?
LonelyandForgotten
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or quadratic* sorry
ghazi
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quadratic equations are those whose degree is two like the equation in which maximum power of x is 2 and minimum too like \[x^2+x+2=0, x^2+1=0, x^2=0\] equations in which power of x is two are quadratics ,so this type of equations are not quadratic , \[x+1=0, x^3+3x^2+x+3=0\] in quadratic power of x must be 2
ghazi
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so your answer is option D cuz its cubic x has power 3 clear?
LonelyandForgotten
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hmmm.. alright :)
ghazi
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next
LonelyandForgotten
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whats a parabola?
ghazi
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its a conic section, created from the intersection of a right circular conical surface and a plane parallel to a generating straight line of that surface. like consider this |dw:1353988143775:dw| its a parabola and every quadratic equation represents a parabola so all the equations with degree two which means power of x should be 2 represents a prabola
ghazi
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?? clear??
LonelyandForgotten
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|dw:1353988155323:dw|
ghazi
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lol its B
LonelyandForgotten
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sorry for my bad drawing :P lol thanks !! :D
ghazi
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A- straight line
C- cubic curve
D- hyperbolic so its B clear?
LonelyandForgotten
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yes clear thank you! :D
ghazi
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next ?
LonelyandForgotten
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hmm should i draw the next question or just do screen shot of it, i think drawing would be too slow :P
ghazi
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take snap shot and attach it here fast
LonelyandForgotten
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there you go :D
ghazi
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do you know what is vertex? if not then remember every parabola has lowest and highest point that point is called as vertex like the point where curve takes a turn
here in this picture its (-2,1) clear??
ghazi
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just see the point in the graph where parabola take,s turn at the bottom
LonelyandForgotten
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ohh hmm i didnt know that well thanks that helps a lot i think i can do this now :D
ghazi
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great next??
LonelyandForgotten
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noo i will finish this now :D
ghazi
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next please viki? i know you won't so ask now
LonelyandForgotten
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what does X-intercepts mean?
ghazi
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well x intercept means where the curve cuts the x axis or where the line meets x axis here in an example|dw:1353988840083:dw| in this graph we can see that line cuts x axis at 2,0 so x intercept is 2 and y is 3
ghazi
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lol let me explain ;)
ghazi
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intercept simply means the point where curve cuts the axes okay?
ghazi
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what is it not clear?
LonelyandForgotten
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|dw:1353989048953:dw|
you mean these things?
ghazi
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its the point on axes like x axis or y where the curve cuts it okay like take an example of line |dw:1353989013085:dw| so that point 4, 0 says line cuts x axis at 4 so x intercept is 4
ghazi
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yes those things , where line passes the axis
LonelyandForgotten
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hmm alright i understand now, thanks :D
ghazi
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|dw:1353989111817:dw|
LonelyandForgotten
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so the answer is (-3,3) ?
ghazi
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no intercept will always have either x=0 or y=0 so it could be (4.0) or (0,3)
LonelyandForgotten
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but it cant be 4 because line crosses at 3 :/
ghazi
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intercept is the length of or part of either axis where line cuts it so for x intercept you have to put y coordinate=0 and for y you have to put x=0
yes x intercept is 2 because line cuts x axis at 2 and y intercept is 3 cuz line cuts y at 3
ghazi
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clear?
LonelyandForgotten
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but itc cant be 2!! it has to be one of the answer choices
ghazi
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show me the question please if it asks for x intercept then it would be, 2,0 or if it asks for y then it would be 0,3 show me question please
ghazi
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we just did it lol come on are you awake
LonelyandForgotten
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wait sorry wrong question !! my bad :(
ghazi
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quick ;)
ghazi
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look in to th graph it cuts x axis twice at -1 and at -3 so can you find what are the x intercepts?
ghazi
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remember y would be zero
LonelyandForgotten
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is it A? im not really sure :/
ghazi
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come on if it is cutting x axis at -1 and -3 then x intercepts are
-3,0 and -1,0 , silly :) clear?
LonelyandForgotten
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hmm okay got it! :D thanks :D
ghazi
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next ? :)
ghazi
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sure
ghazi
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hehe
ghazi
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come on now question please
LonelyandForgotten
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|dw:1353989991234:dw|
here is your question ;)
ghazi
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helloooooooooooooooo?
ghazi
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OMG i was scared of this lol wait a sec
LonelyandForgotten
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are you going to erase it :(
ghazi
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no wait
LonelyandForgotten
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where did you go sweetie :(
ghazi
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|dw:1353990129350:dw|
LonelyandForgotten
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heyyyyy woww :D nice!! ;)
ghazi
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3
i am all here for my baby bunny , now question please
ghazi
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its place to study not for romance ;)
LonelyandForgotten
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hehehe :D i know ;) lets carry on :D
ghazi
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post it :D
LonelyandForgotten
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hehehe your funny :D
LonelyandForgotten
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wait please :D
ghazi
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come on , hey shall we delete those cuz moderators will ban us lol i have taken photo of it
ghazi
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okay leave it as it is :) <3 and baby next question please
LonelyandForgotten
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im not scared of mods :P and this question is closed anyway :D
ghazi
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okay sweetheart next question please
ghazi
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3
next question??
ghazi
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i know you are doing something again
LonelyandForgotten
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|dw:1353990534628:dw|
wow sorry that took too long :P
ghazi
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cant you judge , x should have power of 2 so which one it is??
ghazi
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correct :)
LonelyandForgotten
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hmm great thank you :D
ghazi
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3
next?
LonelyandForgotten
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hmm i wont draw this time :D
ghazi
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3
parabola always have power 2 okay and its drawn up side which means positive
so its B , clear?
LonelyandForgotten
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ohh okay :D thank you! :D
ghazi
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3
next?
LonelyandForgotten
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|dw:1353991046364:dw|
ghazi
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what to do in this?? lol
LonelyandForgotten
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should i post screen shot instead lol ?
ghazi
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what you are supposed to find in this question? vertex?
LonelyandForgotten
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yes find the vertex :D
ghazi
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and there is no coordinates hahahahaha take snapshot again lol
LonelyandForgotten
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hmm alright im sorry :( i tried.. :'(
ghazi
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3
do it now :)
LonelyandForgotten
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there you go :(
ghazi
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baby, look it turns at x=1 and y=4 that is the top point of parabola so its (1,4) okay :D ?
LonelyandForgotten
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okay :D sorry :D this is funny though :D
ghazi
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next ?
ghazi
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lol its really funny hehe
ghazi
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next??
LonelyandForgotten
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I'm thinking it is A. right?
ghazi
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oh no, its D, -1,0 and 3,0
LonelyandForgotten
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oh crap sorry i forgot it is negative :(
ghazi
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look to represent x intercept we write it like (x,0) because y is zero for x intercept and for y intercept we write it like (0,y) cuz x =0 so it cant be A ever cuz that shows y coordinate and you have to find x clear??
LonelyandForgotten
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yes clear thank you :) this is the last question :)
LonelyandForgotten
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yes clear thank you :) this is the last question :)
ghazi
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next, i know this is not the last one there are 10
LonelyandForgotten
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would you like to see proof?
ghazi
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3
sure
LonelyandForgotten
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it is there :D
ghazi
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3
next quiz baby :)
ghazi
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next quiz :) ??
ghazi
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3
and what was your score?
ghazi
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OMG which two were incorrect and why you did it??
ghazi
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i have give right answer to every question you did it knowingly :(
LonelyandForgotten
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my fault i chose the wrong answers :/
LonelyandForgotten
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but thank you :D
ghazi
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come on you cant be that silly :(
LonelyandForgotten
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i didnt know im sorrry :(
ghazi
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now open next please
ghazi
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??
ghazi
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@LonelyandForgotten where is my drawing ?? and how come your drawing appeared again :(
LonelyandForgotten
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wait a minute, this isnt the right one :/ we were on @ghazi :) not dating place
ghazi
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oops sorry lol
LonelyandForgotten
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but all that stuff is here,how come it all moved here?
ghazi
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i can't believe this i don't know what's happening that's why i am confused lol