Describe the transformation that map the function y=2^x to the function on to the function y=3(2^x-1) +1 A. vertical stretch (by a factor of 2)

shift down 2 (y - 2)

shift left 3 (3x)

B. shift down 2 (y = 2)

shift left (x + 2)

C. horizontal stretch (by a factor of 3)

shift down 2 (y - 2)

D. vertical stretch (by a factor of 3)

shift right 1 (x + 1)

shift up 1 (y + 1)