A dilation has center (0,0). Find the image of each point for the given scale factor. A(3,4);D7(A)

Question

A. (11,10)

B.(28,21)

C. (21,28)

D. (10,11)

Answer 1

Anytime you have a coordinate that you are dilating using a scale factor, you multiple each part of the coordinate by the scale factor. For your question: If a dilation is centered at (0,0) with the original point (the preimage) as A(3,4) and the scale factor is 7 (which means it is an enlargement), we will find our new point A' (read as A prime) by multiplying each part of the coordinate by 7 and you will get A'(21, 28).

Hope that helps! Let me know if you have any questions!