Question

If f(x) = 2x + 1 and g(x) = x2 find g (f(3))

Answer 1

g(f(3)) = 49

Explanation:

Evaluate f(3), then substitute the value obtained into g(x) , that is

f(3) = 2(3) + 1 = 6 + 1 = 7, then

g(7) = 7² = 49