SOLUTION: My homework says "Write an expression for the slope of a line passing through the points (0,-3) and (x,-9)" Not sure how to get this

Algebra ->  Rational-functions -> SOLUTION: My homework says "Write an expression for the slope of a line passing through the points (0,-3) and (x,-9)" Not sure how to get this      Log On


   

Question 924556: My homework says "Write an expression for the slope of a line passing through the points (0,-3) and (x,-9)" Not sure how to get this
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Slope is change in y divided by change in x.
m=%28-9-%28-3%29%29%2F%28x-0%29=%28-9%2B3%29%2Fx=-6%2Fx