SOLUTION: Find the slope of the line containing the pair of points. (5,7) and (8,1) thank you

Algebra ->  Linear-equations -> SOLUTION: Find the slope of the line containing the pair of points. (5,7) and (8,1) thank you      Log On


   

Question 445954: Find the slope of the line containing the pair of points.
(5,7) and (8,1)


thank you
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

(5,7) and 

(8,1)  m = 6/-3 = -2

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 = -2x + b

 1 = -2*8 + b

 17 = b

 y = -2x + 17