Exploring Dilation and Scale Factor Concepts

Exploring Dilation and Scale Factor Concepts

Assessment

Interactive Video

Mathematics

6th - 8th Grade

Hard

CCSS
8.G.A.3, 7.G.A.1

Standards-aligned

Created by

Lucas Foster

FREE Resource

Standards-aligned

CCSS.8.G.A.3
,
CCSS.7.G.A.1
This video tutorial explains how to determine the scale factor of a dilation using side lengths of pre-images and images. It covers methods to calculate the scale factor by comparing vertices and using ratios. The tutorial addresses common misunderstandings and explains different types of dilations, including enlargements, reductions, and congruent figures. By the end, viewers will understand how to calculate the scale factor and recognize the characteristics of various dilations.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the scale factor if the x-value of the image vertex is 4 and the pre-image vertex is 2?

2

1

4

0.5

Tags

CCSS.7.G.A.1

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If the side length of the image is twice that of the pre-image, what is the scale factor?

0.5

1

2

4

Tags

CCSS.8.G.A.3

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What must be true for all corresponding sides in a dilation?

They must have a constant ratio.

They must decrease.

They must be equal.

They must increase.

Tags

CCSS.8.G.A.3

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If the ratios of corresponding sides are 1.5, 2, and 1.6, is the transformation a dilation?

Cannot be determined

No

Sometimes

Yes

Tags

CCSS.8.G.A.3

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What type of dilation results in a scale factor greater than 1?

Reduction

Enlargement

Congruent transformation

None of the above

Tags

CCSS.8.G.A.3

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the scale factor for a dilation where the image is half the size of the pre-image?

1

1.5

2

0.5

Tags

CCSS.8.G.A.3

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In a congruent dilation, what is the scale factor?

1.5

1

0.5

0

Tags

CCSS.8.G.A.3

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