3th Week Asssessment 8th INA

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

• True

• False

Tags

TEKS.MATH.8.3A

If your scale factor is greater than 1, your new shape will be ______.

• Bigger

• Smaller

• The same size

• Rotated

Tags

TEKS.MATH.8.3A

Does the image show a Dilation?

• Yes

• No

Tags

TEKS.MATH.8.3B

Does the image show a dilation?

• Yes

• No

Tags

TEKS.MATH.8.3B

Does the image show a Dilation?

• Yes

• No

Tags

TEKS.MATH.8.3B

Which rule would dilate shows a scale factor of 4?

• (x, y) → (y, x)

• (x, y) → (x + 4, y + 4)

• (x, y) → (x, -y)

• (x, y) → (4x, 4y)

Tags

TEKS.MATH.8.3C

How do you write the algebraic notation when the scale factor is 1/2?

• (x, y) goes to (2x, 2y)

• (x, y) goes to (1/2x, 1/2y)

• (x, y) goes to (-2x, -2y)

• (x, y) goes to (2x, 1/2y)

Tags

TEKS.MATH.8.3C

Enlargement or reduction?  Find the scale factor!

• It's an enlargement; the scale factor is 3.

• It's a reduction; the scale factor is 1/3.

• It's a reduction; the scale factor is 1/2.

• It's an enlargement; the scale factor is 2.

Tags

TEKS.MATH.8.3C

Find the ratio (blue to red) of the area.

• 4/7

• 7/4

• 49/16

• 16/49

Tags

TEKS.MATH.8.10D

Does the transformation shown preserve congruence and/or orientation?

• Congruence yes, Orientation yes

• Congruence No, Orientation No

• Congruence No, Orientation yes

• Congruence Yes, Orientation No

Tags

TEKS.MATH.8.10B