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I'm not 100% sure on how to figure out this equation, can can anyone help out?

I'm not 100% sure on how to figure out this equation, can can anyone help out?-example-1
User Sroll
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1 Answer

5 votes

Answer:

Aonnalin, great name :) answer as below

Explanation:

They tell us to use slope-intercept form. This is something you will just have to remember y = mx+b

It is confusing b/c there is the other one, the point-slope formula too. but just remember both and know that the point-slope one is to get to the slope-intercept one. y-y1 = m(x-x1)

m= slope

m = (y2-y1) / (x2-x1)

P1= (0,7) in the form (x1,y1)

P2 =(8,-2) in the form (x2,y2)

m = -2-7 / 8-0

m = -9 / 8

now that we have the slope, just use either point with the point-slope

y-7 = (-9/8)(x-0)

y-7 = -9x/8

y = -9x/8 + 7

y =
(-9)/(8) X + 7

slope-intercept form :)

User Bram Vandewalle
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5.5k points