Dilation & Scale Factors

Dilate the figure by a scale factor of 3 with the origin as the center of dilation. What are the coordinates of the image?

• A'(9,9) B'(18,18) C'(27,9)

• A'(6,6) B'(9,9) C'(12,6)

• A'(0,0) B'(3,3) C'(6,0)

• A'(1,1) B'(2,2) C'(3,1)

Tags

CCSS.8.G.A.3

If point is at N(-1, 2) and point is at N'(-2, 4), what scale factor was point N multiplied by?

• 2

• 3

• 1/3

• 1/2

Tags

CCSS.8.G.A.3

What is the definition of dilations in mathematical terms?

• to make larger or smaller

• to make larger

• none of the above

• to make smaller

Tags

CCSS.8.G.A.3

A dilation produces a similar figure

• True

• False

Tags

CCSS.8.G.A.3

If the scale factor is less than 1, the new figure will be

• an enlargement

• a reduction

• a scale factor

• bigger

Tags

CCSS.8.G.A.3

What variable represents scale factor in the algebraic representation (x,y) to (kx,ky)?

• x

• y

• z

• k

Tags

CCSS.7.G.A.1

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

Tags

CCSS.8.G.A.3

Is this an enlargement or reduction? (blue = original image)

• reduction

• enlargement

Tags

CCSS.8.G.A.3

_________ ________ is the number you multiply by the sides to create a similar figure.

• Scale Factor

• Corresponding Angle

• Pi

• Mid Point

Tags

CCSS.7.G.A.1

If the blue polygon is the original image, find the scale factor.

• the scale factor is 4

• the scale factor is 2

• the scale factor is 1/4

• the scale factor is 1/2

Tags

CCSS.8.G.A.3