Question

If f(x) = 4x + 8 and g(x) = \/x + 4,
what is (fºg)(12)?

Answer 1

Answer: 24

Explanation:

(fºg)(12) would be f(g(12))

Plug in 12 for g(x) = square root of (12+4) = 4

Plug 4 in f(x)

f(4) = 16 + 8

=24