Correction for #22

Use the coordinate grid shown to do the following:
a) rotate A,B,C 90 degrees counterclockwise about centre of rotation C: B should go 2 units up and 2 units left to where A was to make B', A should go on (-5,0) to make A', and C will stay at (-2,0) to make C'.
b)translate A',B',C' 3 unit right and 3 units down: C' will land on (0,-3) to make C'', A' will land on (-3,-3) to make A'', B' will land on (0,o) to make B''.
c) what are the coordinates for B''?: (0,0).