Question

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Answer 1

Answer:

Scale factor = 1.5

Step-by-step explanation:

Formula for the scale factor,

Scale factor = $\frac{\text{Measure of one side of the Image}}{\text{Measure of one side of the preimage}}$

In this question, image is triangle Y and preimage is triangle X.

Scale factor of X to Y = $\frac{15}{10}$

                                    = 1.5

Therefore, scale factor = 1.5 is the answer.