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Write an equation in slope-intercept form for the line that passes through (4, 4) and has a x-interceptof 3.

Guest Mar 31, 2017
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We have two points (4, 4) and the x intercept. ( 3, 0)......we need to find the slope....so we have

 

slope  = m  =  [ 4 -0 ] / [ 4 - 3 ]   =  4/ 1   = 4

 

So....using the slope and either point - I'll use (3, 0) -  slope-intercept form is

 

y = mx + b

 

First.....write in point-slope form

 

y - 0  = (4)(x - 3)

 

y  = 4x - 12

 

And that's point-slope form

 

 

cool cool cool

CPhill  Mar 31, 2017

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