Suppose that a function f has exactly three x-intercepts. Which of the following statements MUST be true?

A. There are three points on the graph of f which have x-coordinates of 0.

B. The equation f (x) = 0 has exactly three real-number solutions.

C. f is a cubic polynomial function.

D. f is an invertible function.

The graph of y = f (x) is shown at the left and the graph of y = g(x) is shown at the right. (No formulas are given.) What is the relationship between g(x) and f (x)?

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