Chapter 11.7, Problem 15IP

To determine

To find: Scale factor of the dilation.

Answer to Problem 15IP

Scale factor of the dilation $=\frac{7}{4}$

Explanation of Solution

Given information:

Length before dilation $=4$ millimeters

Length after dilation $=7$ millimeters

We know Scale factor is Length after dilation dividing with Length before dilation.

On substituting values

We get

Scale factor $=\frac{7mm}{4mm}$

  $\Rightarrow$ Scale factor $=\frac{7}{4}$

Therefore,

Scale factor of the dilation $=\frac{7}{4}$