Question

Given f(x) = 2x − 3 and g(x) = f(2x), which table represents g(x)?

Answer 1

g(x) = 4x - 3

Explanation:

f(x) = 2x − 3

g(x) = f(2x)

g(x) = 2(2x) - 3 ==> plugin 2x for x in f(x) in order to get f(2x)

g(x) = 4x - 3