4) D:(x, y) - - (3x, 3y) means that we would dilate by a fator of 3. To do this, we would multiply the coordinate of each vertices by 3.
From the information given, the vertices are
A(0, 0)
B(1, 2)
C(3, - 2)
After dilation, the new vartices are
A(0 *3, (0 * 3) = (0, 0)
B(1 * 3, 2 * 3) = (3, 6)
C(3 * 3, - 2* 3) = (8, - 6)
