Question

F(x) = -9x + 2 and g(x) = -9x + 6, find (f - g)(7)

Answer 1

I think there is an error in the question because

(f-g) = -4

(f-g) (7) = NO SOLUTION

Explanation:

`f(x) = -9x + 2 \\g(x) = -9x + 6\\(f - g)(7)\\(f - g) = -9x + 2 - (-9x+6)\\(f - g) = -9x +2 +9x-6\\(f - g) = -9x +9x+2-6\\(f - g) = -4`