Dilation and Similarity Transformation

Is the dilation from A to B an enlargement or a reduction?

• enlargement

• reduction

Is the dilation from A to B an enlargement or a reduction?

• enlargement

• reduction

What is the scale factor of the dilation from A to B ?

• 1/4

• 1/2

• 1

• 2

What is the scale factor of the dilation from A to B ?

• 8

• 2

• 1/6

• 1/3

What is the rule for the dilation pictured below?

• (x, y) → (½x, ½y)

• (x, y) → (x + 2, y + 2)

• (x, y) → (2x, 2y)

• (x, y) → (2x, 3y)

What is the scale factor of the dilation from A to B ?

• 2

• 1

• 1/2

• 1/3

Which of the statements is true about the graphed triangles?

• They are similar, because one can be obtained by dilating the other about the origin with a scale factor of 2.

• They are similar, because one can be obtained by dilating the other about the origin with a scale factor of 1/2.

• They are not similar, because one can be obtained by dilating the other about the origin with a scale factor of 2.

• They are not similar, because one can be obtained by dilating the other about the origin with a scale factor of 1/2.

Every dilation has a fixed point called the_________

• reduction

• enlargement

• scale factor

• center of dilation 

True or false, when a figure is dilated, the corresponding sides are proportional?

• True

• False

Choose the correct scale factor:

• 2

• 3

• 1/3

• 1/2