Question

Find f(g(4)) if f(x)=2x+1 and g(x)=x^2

Answer 1

First solve g(x) by replacing x with 4

G(x) = x^2 = 4^2 = 16

Now replace x in f(x) with 16:

F(x) = 2x + 1 = 2(16) + 1 = 32 +1 = 33

The answer is 33