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hi :D ill give it a shot
which ones do we have to do? @sbuck98
I kinda needed them all:(
ill repost each and award a medal amd coins
okay thats fine :D so what do you know about substitution? do you know where to start?
I have no idea
okay thats alright :) so ill do number 1 so just fallow along, okay?
Could you help me with them all please though?
yes i will :) that was the plan all along haha
okay so we start with: 6x+2y=0 4x+y=-1 so the first step is to convert one to slope-intercept form (y=mx+b)
alright so chose one to convert...
6x=2y=0 so would it be y=6x+2=0?
close :) it would be y=-3x but you got the right idea
okay lets do the other one its simpler, so we star with: 6x+2y=0 4x+y=-1 we convert the second equation: 4x+y=-1 subtract 4x y=-4x-1 correct?
Okay yes, sorry my laptop died.
its alright haha okay so we plug our new equation in for y into the other equation, so we get: 6x+2(-4x-1) can you simplify?
no you see we need to find the values of x and y so we: 6x+2(-4x-1) distribute the 2: |dw:1446510815383:dw| 6x-8x-2 combine like terms: -2x-2 add 2 to both sides: -2x=2 divide by -2: x=-1 do you follow?
okay so now we plug that into one of the equations.... 4x+y=-1 plug in for x: 4(-1)+y=-1 -4+y=-1 add 4 to both sides: y=3 so our pair is: (-1,3)
Can you help me with the rest please?
yes so now you try the second problem, tell me your answers as you go... :) ill be right here if you need help
close it would be y=-1/2x -8 nice try
so plug that in for y in the other equation
no it would be: 3x+2(-1/2-8)=-4
Okay,so I solve this?
yes solve for x
3x+2(-1/2-8) distribute the 2 |dw:1446512011940:dw|
okayy so combine like terms
so its 6x
add 16 to both sides: 2x=12 divide by 2: x=6
so now plug in x to one of the equations
okay so now multiply
subtract 18 from both sides
18+2y=-4 subtract 18: 2y=-4-18
I don't get this stuff at all:,( can you please show me how to work them
okay lets finish this one then ill bring someone in, okay? :) dont worry, youll do fine
Can you please help me finish these questions though? I have to pass this class
so -4-18 is -14 so 2y=-14 divide by 2: y=-7 our pair is: (6,-7)
Thank you, Could you just explain the rest of them like you did before?
hold on ill bring in a friend to help you understand it :)
@MyNameIsNemo I SUMMON NIGGS!!!! haha :D
no problem :) @sbuck98
@atreyu6s3x6 woulda' been cooler if you made me seem like a pokemon.... lol now i seem like a demon, which isnt bad, demon pokemon
hm, okay anyways whats up
haha okay so now we're on problem 3 http://assets.openstudy.com/updates/attachments/5637fa27e4b09edab9becbb3-sbuck98-1446509118095-screenshot119.png
this is subbing, which is pretty fun for me actually :)
I love algebra!
she wants to further understand the process to solving it, i didn't know how to explain it any other way @MyNameIsNemo lol yea i know haha :D
Okay, well :D so what dont you understand about it, ms. Ariel?
Honestly, I just don't understand the whole process bc I haven't learned any of this yet.
oh, is it a pre-lesson assignment?
woah i didnt know that..... hold on @sbuck98
But I have a F in the class so I need to get my grade up:(
ohhhhhhhh so it wont even count much for your grade if it's only a pre, darlin i cant help you on a pre-assignment, I can help you once you learn it if you need help
http://www.mathportal.org/algebra/solving-system-of-linear-equations/substitution-method.php check that out, its all the steps for the process :) @sbuck98
Could one of you please just help step me through the problems? I'm new to this school and don't get it.
darlin, is it a pretest or pre-assessment?
I think, It's the one you have to take for bonus before you learn it
okay, but is it a pre-assessment, like before they teach it, how new are you to the school?
am I calling it the right thing?
and I started a week ago
how do you already have an F then .-.
Because I didn't know any of the daily work they assigned me last week
I'll help with ONE but you have to follow and take it like notes, then you need to do the rest alone
look its a pre assignment so they wont grade it for correct answers, they'll simply grade it for the effort, just to see if you at least tried it, dont sweat it :)
pick 1 question
okay so 5x - 4y = 14 x - 2y = -2 what do you think is your 1st step
where did you get that? I want steps
so I just filled in the #s
okay 1 sec i'll show you
step 1: solve for x or y easiest way to remember is to convert to slope-intercept
sh, you just sit there and look pretty @atreyu6s3x6
okay :) lmao whatever, NO!! @MyNameIsNemo
Can someone show me how?
I know it's rearrangef to x-2*y-(2)
@sbucks http://www.mathportal.org/algebra/solving-system-of-linear-equations/substitution-method.php use those steps
I'll write out the notes/steps and the question, you need to do the rest yourself after this okay?
ill be right back
Hold on give me a few
I cant see it can u rotate the pic
Can u take another picture? I cant see it
the bottom half is blurry
... People have no chill... One sec