Dilations About the Origin

Dilations are ________ but not congruent.

• Similar

• Flipped

• Rotated

• Congruent

Tags

CCSS.8.G.A.3

Dilations will always keep the same ________

• Orientation

• Size

• Area

• Perimeter

Tags

CCSS.8.G.A.3

When you dilate, you ______ x and y by a number.

• Multiply

• Add

• Subtract

• Divide

Tags

CCSS.8.G.A.3

Does the image show a dilation?

• Yes

• No

Tags

CCSS.8.G.A.3

If k=1.25 (k is scale factor), then a dilation will result in a(n)______

• reduction

• enlargement

• scale factor

• center of dilation

Tags

CCSS.8.G.A.3

Does the image show a dilation?

• Yes

• No

Tags

CCSS.HSG.CO.A.2

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

State the coordinate of the image of the given point B (4,9) under a dilation with center at the origin with the given scale factor of 2.

• B' (2 , 4.5)

• B' (-8 ,-18)

• B' (8 ,18)

• B' (9 ,4)

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

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

• (5,3)

• (20,12)

• (-20,-12)

• (-5,-3)

Tags

CCSS.8.G.A.3