Forty-two is what percent of 70? A.21% B.60% C.74% D.167%
1 answer:
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ANSWER
The scale factor is 2.
EXPLANATION
The point H(7,9) is dilated about the origin and the image is (14,18).
Let the scale factor be k.
Then,
Comparing to the given image, we have:
This implies that,
Divide by 2
Or
We could do it by first writing
so that
and since , we have
# # #
Alternatively, we can just compute the product and take it mod 4:
and so we get the same result of 1.