SOLUTION: find a if the line joining (3,a) to (-6,5) has gradient of 1/3

Algebra ->  Parallelograms -> SOLUTION: find a if the line joining (3,a) to (-6,5) has gradient of 1/3      Log On


   

Question 355257: find a if the line joining (3,a) to (-6,5) has gradient of 1/3
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
The formula for slope (or gradient) is,
m=%28y%5B2%5D-y%5B1%5D%29%2F%28x%5B2%5D-x%5B1%5D%29=1%2F3
.
.
%285-a%29%2F%28-6-3%29=1%2F3
.
.
%285-a%29%2F%28-9%29=1%2F3
.
.
5-a=-3
.
.
Solve for a.