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Dilations & Scale Factors

Authored by Erica Lee

Mathematics

8th - 10th Grade

CCSS covered

Used 203+ times

Dilations & Scale Factors
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12 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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

an enlargement
a reduction
a scale factor
bigger

Tags

CCSS.8.G.A.3

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If the scale factor is greater than one, the new figure will be

a reduction
an enlargement
a scale
not proportional

Tags

CCSS.8.G.A.3

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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

(x, y) −> (2x, 2y)

(x, y) −> (1/2x, 1/2y)

(x, y) −> (-2x, -2y)

(x, y) −> (2x, 1/2y)

Tags

CCSS.8.G.A.3

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

Choose the correct scale factor:

2
3
1/3
1/2

Tags

CCSS.8.G.A.3

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Similar figures have the same ______ but different ______. 

measure; shapes
sizes; shapes
value; measures
shape; sizes

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of the following is the algebraic representation for a dilation?

(x, y) → (x, 3y)
(x, y) → (3x, 3y)
(x, y) → (x, y - 3)
(x, y) → (.5x, .4y)

Tags

CCSS.8.G.A.3

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Are the two polygons similar? If not, explain why. (They are not drawn to scale, but you can assume all angles are 90°.)

Yes

No; Not enough information to tell

No; 5 ⁄ 25 ≠ 6 ⁄ 10

No; 5 ⁄ 25 ≠ 8 ⁄ 41

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

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