Question

The function g is defined by g(x) = 2x² +7.
Find g(4y).

Answer 1

32y² + 7

Explanation:

To evaluate g(4y) substitute x = 4y into g(x) , that is

g(4y) = 2(4y)² + 7 = 2(16y²) + 7 = 32y² + 7