Dilations Exit Ticket

Which of the following statements is true about the scale factor (k) for this dilation?

If the scale factor is between zero and one, the new figure will be

• an enlargement

• a reduction

• a scale factor

• bigger

On a scale of 1 - 5 (5 is the strongest), how confident do you feel about working with dilations?

• 1

• 2

• 3

• 4

• 5

Dilate Point B by a scale factor of 1/2

• (1.5,-4)

• (-1.5,1)

• (-1,-1.5)

• (-2,-2)

A dilation is which of the following: 

• only an enlargement

• only a reduction

• Either an enlargement or a reduction

• Neither an enlargement or a reduction

State the coordinate of the image of the given point G (-10,-6) under a dilation with center at the origin with the given scale factor of 1/2.

• G' (5,3)

• G' (20,12)

• G' (-20,-12)

• G' (-5,-3)

A scale factor that is equal to one means that the shape is __________ to the preimage.

• Different

• Opposite

• Congruent

Why can the scale factor NOT be zero?

• The scale factor can be zero.

• There would be no shape.

• Multiplying by zero is not possible.

• I don't know?

If a shape is being stretched, the scale factor is ...

• Less than 1 but greater than 0

• Equal to 1

• Greater than 1

A scale factor of less than one means

• that the prime image will be larger than the pre-image.

• That the prime image will be the same as the preimage.

• That you need to subtract that amount off  of each side.

• That the prime image will be a reduction of the preimage.