Question

A line that includes the points (-6, 2) and (a, 1) has a slope of -1/9. What is the value of a?

Please help!

Answer 1

Explanation:

(1 - 2)/(a + 6)= -1/9

-1/a + 6 = -1/9

-a - 6 = -9

-a = -3

a = 3