Given the following functions f(x) and g(x), solve f[g(7)].

f(x) = 4x + 21

g(x) = 2x + 2

2 answers

f(x) = 4x + 21
g(x) = 2x + 2

g(7) = 2(7)+2 = 16

f[g(7)] = 4(16) + 21
= .....
OR,
f(g(x)) = 4g(x)+21 = 4(2x+2)+21 = 8x+29
so f(g(7)) = 8*7 + 29 = ___