Question

The graph of f(x) = x^2 is shifted 3 units down to obtain the graph of g(x). Which of the following equations best describes g(x)?

A. g(x) = (x + 3)^2

B. g(x) = x^2 - 3

C. g(x) = x^2 + 3

D. g(x) = (x - 3)^2