Question

Given f(x) = 4x + 1 and g(x) = 2x² +3 , find (f ◦ g)(x)

Answer 1

8x^2 + 13.

Explanation:

(f o g)(x) is found by replacing the x in f(x) by g(x).

= 4(2x^2 + 3) + 1

= 8x^2 + 12 + 1

= 8x^2 + 13.