Journal Entry

Scale factors are generally positive real numbers. Use the number line below to identify the scale factors that will create an enlargement, or larger figure, a reduction, or smaller figure, or a congruent figure.

Click on the number line to check your answer.

• Notice that multiplying by a scale factor greater than one created a larger figure or an enlargement.
• Notice that multiplying by a scale factor between zero and one created a smaller figure or a reduction.
• Notice that multiplying by a scale factor equal to one generates a congruent figure.

What scale factor is used in each of the tables below?

Click on the charts to check your answers.