Exercise 3 Page 209

Let's start by graphing $△PQR.$ We have been given the points $P(5,\text{-}5),$ $Q(10,\text{-}5),$ and $R(10,5).$

A dilation can be an enlargement, a reduction, or the same size as the preimage. Which type of dilation it is depends on the value of the scale factor $k.$