Below is the graph of f(x) = 3 log10 m. How would you describe the graph of
 g(x)= 9 log10 x?
 3+
 2
 1
 -3
 -2
 -1
 2
 3
 4
 5
 -
 -2-
 -3
 O A. g(x) shifts f(x) to the right 3 units.
 B. g(x) shifts f(x) up 3 units.
 C. g(x) compresses f(x) by a factor of 3.
 D. g(x) stretches f(x) vertically by a factor of 3