Quizizz Lesson: Dilations 1

Dilations

Dilations will enlarge or reduce your image on the coordinate plane. 

Remember!

Multiple Choice

Warm Up 1/28/21

A scale factor of 1/2 reduces a figure.

• True

• False

Multiple Choice

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

• True

• False

Multiple Choice

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

• True

• False

Fill in the Blank

If a dilation has the rule
$$(x,y)→(2.5x,2.5y)$$  what is the scale factor?

.

Multiple Choice

If a dilation has the rule
$$(x,y)→(2.5x,2.5y)$$  what type of dilation is this?

• enlargement

• reduction (shrink)

Multiple Choice

If the triangle ABC is dilated using a scale factor of k=2, what will be the coordinates of A' after the transformation?(Click the picture to zoom in on it)

• A'(1.5, -1.5)

• A' (-6, 6)

Multiple Choice

If the triangle ABC is dilated using a scale factor of k=2, what will be the coordinates of B' after the transformation?(Click the picture to zoom in on it)

• B'(-8, 0)

• B' (-6, 6)

Multiple Choice

If the triangle ABC is dilated using a scale factor of k=2, what will be the coordinates of C' after the transformation?(Click the picture to zoom in on it)

• C'(1.5, -1.5)

• C' (2, 2)