Question

The Image of a point under Do3, is (7,2).

Its preimage is


A. (7/3, 7/2)

B. (21, 6)

C. (4, -1)

Answer 1

B

Explanation:

Answer 2

9514 1404 393

Answer:

B. (21, 6)

Explanation:

The preimage coordinates are multiplied by the dilation factor to obtain the image coordinates. If P is the preimage point and the dilation factor is 1/3, you have ...

(1/3)P = (7, 2)

P = 3(7, 2) = (3·7, 3·2)

P = (21, 6)

The preimage point is (21, 6).