SOLUTION: identify the slope of the line passing through the pair of points (5,2) and (−2, 1) i have no idea what they are asking me to do and how to do it.

Algebra ->  Graphs -> SOLUTION: identify the slope of the line passing through the pair of points (5,2) and (−2, 1) i have no idea what they are asking me to do and how to do it.      Log On


   

Question 449031: identify the slope of the line passing through the pair of points (5,2) and (−2, 1)


i have no idea what they are asking me to do and how to do it.
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, 2) and 

(-2, 1) m = 1/7

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 = (1/7)x + b  

 2 = (1/7)*5 + b

 9/7 = b

  y = (1/7)x + 9/7