### Home > CC2 > Chapter 7 > Lesson 7.1.2 > Problem 7-22

7-22.

Use the triangles below right to answer the questions that follow.

What is the scale factor from A to B?

What scale factor value times

ft would result in ft? Consider the variable equation with as the scale factor:

After isolating, what do you get as the scale factor?What is the scale factor from B to A?

If the change from B to A is just the reverse of the change from A to B, what would the scale factor be? Create an expression like above if necessary.

What is the relationship of the scale factors?

The scale factors are reciprocals.