Which statement BEST describes how the graph of g(x) = – 3x2 compares to the graph of f(x) = x2 ?



A

The graph of g(x) is a reflection of f(x) across the x-axis.

B

The graph of g(x) is a vertical shrink of f(x) by a factor of 1/3 and a reflection across the x-axis

C

The graph of g(x) is a vertical stretch of f(x) by a factor of 3.

D

The graph of g(x) is a vertical stretch of f(x) by a factor of 3 and a reflection across the x-axis.