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:
, 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.