Jackson was solving the problem below for k. However, he made a mistake. 19 - 2k = 3k - 1

+3k +3k

19 +1k = -1

-19 -19

k = -20

Part A: Identify the FIRST mistake Jackson made.

Part B: Solve for k.

Pentagon abcde is dilated according to the rule do,3(x,y) to create the image pentagon a'b'c'd'e', which is shown on the graph. what are the coordinates of point a of the pre-image? a) (-1, 1)b) (-1, 2)c) (-9, 6)d) (-9, 18)