Dilations

A dilation is which of the following:

• only an enlargement

• neither an enlargement or reduction

• only a reduction

• both an enlargement and a reduction

When the scale factor of a dilation is less than one, the dilation is a reduction.

• True

• False

The y-axis is...

• horizontal

• vertical

• diagonal

Definition: The figure after a transformation has occurred.

• image

• pre-image

If your SF=2.5, what type of dilation is it?

• reduction

• enlargement

A dilation produces a congruent figure.

• True

• False

A dilation is given by the transformation (x, y) → (3.5x, 3.5y). What is the scale factor?

• 3/5

• 3.5

• 5/3

• 1/3.5

When a dilation has a scale factor greater than one, the dilation is an enlargement.

• True

• False

In a dilation what mathematical operation is used with the scale factor?

• division

• addition

• multiplication

• subtraction

If your SF=0.6, what type of dilation is it?

• enlargement

• reflection

• translation

• reduction