SOLUTION: Find the slope of the line passing through the points (a,−a−7) and (a+h,−(a−9h)−7).

Algebra ->  Linear-equations -> SOLUTION: Find the slope of the line passing through the points (a,−a−7) and (a+h,−(a−9h)−7).      Log On


   

Question 908950: Find the slope of the line passing through the points
(a,−a−7) and (a+h,−(a−9h)−7).
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!
given:
(a,-a-7) and (a%2Bh,-%28a-9h%29-7)
find: the slope m
use %28y%5B2%5D-y%5B1%5D%29%2F%28x%5B2%5D-x%5B1%5D%29

let's
(x%5B1%5D,y%5B1%5D)= (a,+-a-7+) and
(x%5B2%5D,y%5B2%5D)= (a%2Bh,+-%28a-9h%29-7+)




%28y%5B2%5D-y%5B1%5D%29%2F%28x%5B2%5D-x%5B1%5D%29=+9h%2Fh
%28y%5B2%5D-y%5B1%5D%29%2F%28x%5B2%5D-x%5B1%5D%29=+9
so, the slope is: m=9