SOLUTION: Find the slope if it exists of the straight line containing the pair of points (4,5)and(9,-9)

Algebra ->  Linear-equations -> SOLUTION: Find the slope if it exists of the straight line containing the pair of points (4,5)and(9,-9)      Log On


   

Question 443523: Find the slope if it exists of the straight line containing the pair of points
(4,5)and(9,-9)
Answer by chriswen(106) About Me  (Show Source):
You can put this solution on YOUR website!
slope=%28y1-y2%29%2F%28x1-x2%29
slope=%285-%28-9%29%29%2F4-9
slope=%2814%29%2F%28-5%29
slope=-2.8
Therefore the slope of the straight line is -2.8.