Question

If f(x) = 2x and g(x) = 3x + 2, what is g(f(x)) when x = 2?

Answer 1

$\large \mathfrak{Solution : }$

f(x) = 2x

f(2) = 2 × 2 = 4

now,

g(x) = 3x + 2

g(f(2)) = (3 × 4) + 2

g(4) = 12 + 2

g(4) = 14