Answer:
Coordinates of B'(16, 14).
Step-by-step explanation:
From the graph attached,
ABCD is a square with vertices A(2, 7), C(8, 1) and D(2, 1).
Therefore, coordinates of the point B which should be at equal distance from A and C will be B(8, 7).
Square ABCD is dilated with a scale factor of 2 with the center of dilation at the origin.
Coordinates of B(8, 7) will be B'(16, 14).
