Question

What is the value of "b" in the equation below if the the point (-2, 13) is a solution of the equation?

4x + by = 18

Answer 1

b = 2

Explanation:

In (-2, 13), the "x" value is -2 and the "y" value is 13. So all you gotta do is plug it in.

4(-2) + b(13) = 18

-8 + 13b = 18

13b + 26

b = 2