Suppose f(x) = 5x - 9. If the graph of f(x) is reflected about the x-axis, then write the equation of the resulting graph.

• A. g(x) = -5x + 9
• B. g(x) = 5x - 9
• C. g(x) = 5x + 9
• D. g(x) = -5x - 9

Answer: (A)