In each of the graphs A-E below, a possible graph of $f \left( 3 x \right)$ is given in blue on the same axis as the origin function $f(x) = 4^x$ drawn in black. (a) Which of the graphs A-E matches your graph? ? A B C D E (b) Where does the point $P = (2, 16)$ marked on the graph of $f(x)$ get moved to on the new graph of $f (3 x)$? The point on the new graph is

A   B   C     D   E   (Click on a graph to enlarge it.)

You can earn partial credit on this problem.