SOLUTION: Given two points through which a line passes, write the equation of each line in slope-intercept form (-4,3) and (-2,1)

Algebra ->  Linear-equations -> SOLUTION: Given two points through which a line passes, write the equation of each line in slope-intercept form (-4,3) and (-2,1)      Log On


   

Question 445777: Given two points through which a line passes, write the equation of each line in slope-intercept form
(-4,3) and (-2,1)
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

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

(-4,3) and 

(-2,1)  m = 2/-2 = -1

Note: 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

 1 = -1*-2 + b

 -1 = b

 y = -x -1