Given: f (x) = x² and g (x) = x + 1, find g[f (-2) ].

A. - 3

B. 1

C. 5

Answer: C

Step-by-step explanation:

f (x) = x² and g (x) = x + 1

This is composite function, i. e function of a function

g (f (x)) = g (x²), since f (x) = x²

f (-2) = (-2) ² = 4

g (f (-2)) = g (4) = 4 + 1 = 5