SOLUTION: If the line passing through the points (a, 1) and (14, 5) is parallel to the line passing through the points (0, 9) and (a + 2, 1), what is the value of a, has to be an exa

Algebra ->  Linear-equations -> SOLUTION: If the line passing through the points (a, 1) and (14, 5) is parallel to the line passing through the points (0, 9) and (a + 2, 1), what is the value of a, has to be an exa      Log On


   

Question 894565: If the line passing through the points
(a, 1) and (14, 5)
is parallel to the line passing through the points
(0, 9) and (a + 2, 1),
what is the value of a, has to be an exact number.
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
The slopes are equal if the two defined lines are parallel.

%2815-a%29%2F%2814-1%29=%281-9%29%2F%28a%2B2-0%29

Solve for a.