Question

If f(x) = -2x + 7 and g(x) = x2 – 2, what is (fog)(3)?
0 -7
0 -1
0 1

Answer 1

-1

Explanation:

f(x) = -2x + 7

g(x) = x2 – 2

(fog)(3) = f(g(3))

f(g(x)) = -2(2x - 2) + 7

-2(2(3) - 2) + 7 = -1