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7-22.

Use the triangles below right to answer the questions that follow. Homework Help ✎

  1. picWhat 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?

  2. 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.

  3. What is the relationship of the scale factors?

    The scale factors are reciprocals.