Question

This figure is dilated by a factor of 12, with the origin as center. 

Which statement is NOT correct?


A)R(2, 8) → R'(1, 4)


B)Q(10, 2) → Q'(5, 2)


C)P(2, -4) → P'(1, -2)


D)S(-10, 2) → S'(-5, 1)

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Answer 1

This figure is dilated by a factor of 12, with the origin as center.

Which statement is NOT correct?

A)R(2, 8) → R'(1, 4)

B)Q(10, 2) → Q'(5, 2)

C)P(2, -4) → P'(1, -2)

D)S(-10, 2) → S'(-5, 1)

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Explanation:

As you can see in A,C and D, the x-coordinate and the y-coordinate is divided by 2.

E.g. 2 / 2 =1 8/2=4 so ⇒R'(1, 4)

but in B, the first x-coordinate is divided by 2 but the y-coordinate is divided by 1.

Answer 2

The one that stands out as incorrect is B

Explanation:

I'll assume that by 12, you meant 1/2 because if the scale factor is 12, then none of the choices are correct. B is the only one that stands out because while in the x, 10 does turn into 5 after being multiplied by 1/2, the 2 in the y remained the same instead of being turned into 1.