SOLUTION: What is the equation, in slope-intercept form, of the line that contains the points (-1, 8) and (4, 3)?

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Question 465616: What is the equation, in slope-intercept form, of the line that contains the points (-1, 8) and (4, 3)?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi

Find EQ, in slope-intercept form, of the line that contains the points (-1, 8) and (4, 3)?

Using the point-slope formula, m+=%28y%5B2%5D+-+y%5B1%5D%29%2F%28x%5B2%5D+-+x%5B1%5D%29

(-1, 8) 

 (4, 3)  m = 5/ -5 = -1

Using the standard slope-intercept form for an equation of a line y = mx + b  where m is the slope and b the y-intercept.  

  y = -x + b

  8 = 1 + b

  7 = b

 y = -x  + 7