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Answered

Triangle RST has the coordinates R(1, 1), S(3, 8), and T(5, 1). Which of the following sets of points represents a dilation from the origin of triangle RST?

A

R’(3, 1), S’(3, 24), T’(15, 1)

B

R’(4, 4), S’(6, 11), T’(8, 4)

C

R’(3, 1), S’(9, 8), T’(15, 1)

D

R’(3, 3), S’(9, 24), T’(15, 3)

Verified Answer :

Dilation from the origin is equivalent to multiplying all coordinates by some number.  D is the only one that satisfies this, as you can see that all coordinates are multiplied by 3 to create this set of points.

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