4 11 x 3 10 x 2 9 July 8, 2019 16 32 64 128 5 12 x 4 11 x 3 10 x 2 9 4 12 x 3 11 x 2 10 x 1 9 4 9 · 10− 3 4(1 3/4 * x + 1 1/2) =10 9