Question

Rectangle QRST has coordinates Q(-3, 7), R(-3, 11), S(4, 11), and T(4,7)

Dilate the rectangle by a scale factor of 3 with a center of dilation at the origin. What are the coordinates of rectangle Q’R’S’T’? Explain your reasoning. Is the dilation a reduction or an enlargement?

Answer 1

Q’= (-6,21) R’=(-6,33) S’=(12,33) T’=(12,21) the scale factor is 3 so you multiply the coordinates by 3. It is an enlargement