All expressions equivalent to 3.1y+ (y+10) + 4.2y

Dilations map circles to circles and ellipses to ellipses with the same. true or false

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What is true about the dilation? it is a reduction with a scale factor between 0 and 1. it is a reduction with a scale factor greater than 1. it is an enlargement with a scale factor between 0 and 1. it is an enlargement with a scale factor greater than 1.