KAP Dilations

What occurs when the scale factor is greater than 1?

• enlargement

• reduction

• stays the same

The preimage (the original) and image (new figure) after a dilation are....

• similar

• congruent

• the same

• enlargement

Dilate point A (-9,12) by a scale factor of 1/3.

• (-27, 36)

• (-3, 4)

• (3, 4)

• (-4, 3)

Find the scale factor of the dilation that maps the solid figure onto the dotted figure.

• 2

• 1/2

• 3

• 1/3

A 5 x 7 inch rectangle is enlarged so that each side is 6.3 times the original size. What is the new perimeter of the larger photograph? 

What is the scale factor?

• 3

• 1/3

• 2

• 1/2

What occurs when the scale factor is equal to 1?

• enlargement

• reduction

• stays the same

Dilate the point (-5, 4) with a scale factor of 4.

• (20,16)

• (-9,8)

• (16,-20)

• (-20,16)

If the area of a shape is 15 cm² and that shape was dilated by a scale factor of 1/2, what would be the new area?

• 3.75 cm²
• 7.5 cm²
• 0.75 cm²
• 30 cm²

Find the scale factor of the dilation that maps the solid figure onto the dotted figure.

• 1/2

• 2

• 1/3

• 3