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lolly
 2 years ago
What is an equation for the line that passes through points (–1, –4) and (1, 4)? Write the equation in slopeintercept form. (2 points)
lolly
 2 years ago
What is an equation for the line that passes through points (–1, –4) and (1, 4)? Write the equation in slopeintercept form. (2 points)

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surdawi
 2 years ago
Best ResponseYou've already chosen the best response.2y = mx + b m=(y2y1)/(x2x1)

Swageraid32
 2 years ago
Best ResponseYou've already chosen the best response.0(1,4), m = 4 y = mx + b Sub to find b 4 = 4*1 + b b = 0  y = 4x m = 4 means slope = 4. slopeintercept form of equation of a straight line is y = mx + b. m is the slope. b is the yintercept. your equation starts of with the slopeintercept generic form of y = mx + b replace m with 4 to get y = 4x + b your line goes through the point (x,y) = (1,4) that means the xcoordinate is 1 and the y coordinate is 4. to find the yintercept, you replace y with 4 and x with 1 in the equation and solve for b. your equation of y = 4x + b becomes: 4 = (4 * 1) + b

lolly
 2 years ago
Best ResponseYou've already chosen the best response.0can you set up the equation? then ill solve:P

surdawi
 2 years ago
Best ResponseYou've already chosen the best response.2@swiftskier96 is that the answer http://www.algebra.com/algebra/homework/Graphs/Graphs.faq.question.233716.html hahaha

surdawi
 2 years ago
Best ResponseYou've already chosen the best response.2(x1,y1) = (–1, –4) (x2,y2) = (1, 4)

lolly
 2 years ago
Best ResponseYou've already chosen the best response.0soo y=mx=b? isnt that for finding slope?

surdawi
 2 years ago
Best ResponseYou've already chosen the best response.2yes but you need to find m 1st \[y=\frac{ y2y1 }{ x2x1 }\]

lolly
 2 years ago
Best ResponseYou've already chosen the best response.0ook ill try it..hold on..:)

lolly
 2 years ago
Best ResponseYou've already chosen the best response.0m= 14/14. m=3/3 m=6

surdawi
 2 years ago
Best ResponseYou've already chosen the best response.2(x1,y1) = (–1, –4) (x2,y2) = (1, 4) x1 = 1 y1 = 4 x2 = 1 y2 = 4

lolly
 2 years ago
Best ResponseYou've already chosen the best response.0right..thats what i did..,.i think..?

03225186213
 2 years ago
Best ResponseYou've already chosen the best response.0(yy1)/(y2y1)=(xx1)/(x2x1)

lolly
 2 years ago
Best ResponseYou've already chosen the best response.0@surdawi how did i do it rong?

surdawi
 2 years ago
Best ResponseYou've already chosen the best response.2(4  4)/(1 1)= 8/2=4

surdawi
 2 years ago
Best ResponseYou've already chosen the best response.2what you did (x2y2)/(x1y1)

lolly
 2 years ago
Best ResponseYou've already chosen the best response.0well i thought it was 6..but its not..?

surdawi
 2 years ago
Best ResponseYou've already chosen the best response.2m = 4 now you choose wither point and solve for b y = 4x + b

lolly
 2 years ago
Best ResponseYou've already chosen the best response.0k hold on ill try again..:)

surdawi
 2 years ago
Best ResponseYou've already chosen the best response.2\[m=\frac{ y2y1 }{ x2x1 }=\frac{ 4 4 }{ 1 1 }=\frac{ 8 }{ 2 }=\]

03225186213
 2 years ago
Best ResponseYou've already chosen the best response.0for slope slope=(y2y1)/(x2x1) it can be directly solve see the formula that i have given already

03225186213
 2 years ago
Best ResponseYou've already chosen the best response.0(yy1)/(y2y1)=(xx1)/(x2x1)

lolly
 2 years ago
Best ResponseYou've already chosen the best response.0oooh!!! i got the x1and 2s switched up..ok i see..:)

lolly
 2 years ago
Best ResponseYou've already chosen the best response.0the one with less numbers right?

surdawi
 2 years ago
Best ResponseYou've already chosen the best response.2there is no zeros for x or y this time so pick one and solve, it doesnt matter which one

lolly
 2 years ago
Best ResponseYou've already chosen the best response.0which one would be easier?

lolly
 2 years ago
Best ResponseYou've already chosen the best response.0k ill do the one with less numbers..:P

lolly
 2 years ago
Best ResponseYou've already chosen the best response.0so 4=4x1=b? 4=b..but we already knew that..

surdawi
 2 years ago
Best ResponseYou've already chosen the best response.2both of them has same amount of numbers :p 4=4x1=b? ! why is there an equal to b

lolly
 2 years ago
Best ResponseYou've already chosen the best response.04=8? that dosent make sense...

surdawi
 2 years ago
Best ResponseYou've already chosen the best response.24=4x1+ b what is x1 = ?

surdawi
 2 years ago
Best ResponseYou've already chosen the best response.2it should be one of the pairs either (1,4) or (1,4) 4 = 4*(1) + b

surdawi
 2 years ago
Best ResponseYou've already chosen the best response.24 = 4 + b how can you keep b on one side?

lolly
 2 years ago
Best ResponseYou've already chosen the best response.04=4+b (then the 4 crosses out) +4 +4

surdawi
 2 years ago
Best ResponseYou've already chosen the best response.24 +4 = 4 + 4 +b 0 = b y = 4x + 0

lolly
 2 years ago
Best ResponseYou've already chosen the best response.0where did the other set of 4=4 come from?

surdawi
 2 years ago
Best ResponseYou've already chosen the best response.2you have to add 4 to both sides

surdawi
 2 years ago
Best ResponseYou've already chosen the best response.2passes through points (–1, –4) and (1, 4)?

surdawi
 2 years ago
Best ResponseYou've already chosen the best response.2Anamaria what grade you in?

surdawi
 2 years ago
Best ResponseYou've already chosen the best response.2you should know how to add :P

lolly
 2 years ago
Best ResponseYou've already chosen the best response.0lol i do know how to add:)

lolly
 2 years ago
Best ResponseYou've already chosen the best response.04=4+b (then the 4 crosses out) +4 +4 was this rong?

surdawi
 2 years ago
Best ResponseYou've already chosen the best response.2i went to pray dw:1351801108941:dw

lolly
 2 years ago
Best ResponseYou've already chosen the best response.0lol were u praying that id understand how to do this? lol jk ook umm anyway i thought b=4?

surdawi
 2 years ago
Best ResponseYou've already chosen the best response.2lol muslims pray 5 times a day not only sundays :P ok plug in b = 4 to check y = 4*x + 4 (1, 4) 4 = 4*1 + 4 4 = 8? is that right

lolly
 2 years ago
Best ResponseYou've already chosen the best response.04 is not 8...? im so confused!!

surdawi
 2 years ago
Best ResponseYou've already chosen the best response.2thats would be the answer if b was 4 correct answer is y = 4x + 0 = 4x plug in and check and where is my medal at??

surdawi
 2 years ago
Best ResponseYou've already chosen the best response.2do you want me to give you problem to do?

surdawi
 2 years ago
Best ResponseYou've already chosen the best response.2try solving this What is an equation for the line that passes through points (2,5) and (6,7)? Write the equation in slopeintercept form. (you pay $10 hehe)

lolly
 2 years ago
Best ResponseYou've already chosen the best response.0noo i dont want another problem im too stuck with this one..:)

surdawi
 2 years ago
Best ResponseYou've already chosen the best response.2tell what you dont understand dw:1351802673845:dw

lolly
 2 years ago
Best ResponseYou've already chosen the best response.0i dont really understand what you did..like at all... for the one on the right side...

surdawi
 2 years ago
Best ResponseYou've already chosen the best response.2ok (1,4) now we need to substitute that into y =mx + b y = 4 x = 1 m = 4 y = m* x + b 4 = 4*(1) + b 4 = 4 + b we now need to add a 4 to both sides 4 = 4 + b +4 +4  0 = 0 + b ===> b = 0

surdawi
 2 years ago
Best ResponseYou've already chosen the best response.2no only 0 how do you get the 4?

surdawi
 2 years ago
Best ResponseYou've already chosen the best response.2we never got b = 4 we got m is 4

surdawi
 2 years ago
Best ResponseYou've already chosen the best response.2i have to go to my Advance Engineering Math :( right now; which doesnt look like anything on here...try to figure it out; if you still have problems feel free to message me the answer is y = 4x
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