Quiz about Lago Dilations

Question 1

A dilation is which of the following:

Accepted Answer

either an enlargement or a reduction

Answer

only an enlargement

Answer

only a reduction

Answer

neither an enlargement nor a reduction

Question 2

Definition: The figure after a transformation has occurred.

Accepted Answer

Image

Answer

Pre-image

Answer

Translation

Answer

Reflection

Question 3

Definition: The figure before a transformation has occurred.

Accepted Answer

Pre-image

Answer

Image

Answer

Translation

Answer

Reflection

Question 4

A dilation always produces a congruent figure.

Accepted Answer

False

Answer

True

Question 5

A dilation always produces a similar figure. Similar figures have the same ______ but different ______.

Accepted Answer

shape; sizes

Answer

measure; shapes

Answer

sizes; shapes

Answer

value; measures

Question 6

Did the image enlarge, reduce or none of the above?

Accepted Answer

Reduce

Answer

Enlarge

Answer

None of the above

Question 7

Does the image show a Dilation? If yes, did the image enlarge, reduce or none of the above?

Accepted Answer

Yes, enlarge

Answer

Yes, reduce

Answer

No

Question 8

What scale factor was used to produce the image?

Accepted Answer

2

Answer

3

Answer

1/3

Answer

1/2

Question 9

What scale factor was used to produce the image?

Accepted Answer

7

Answer

1

Answer

18

Answer

49

Question 10

What scale factor was used to produce the image?

Accepted Answer

1/2

Answer

2

Answer

-2

Answer

1

Question 11

What scale factor was used to produce the image?

Accepted Answer

1.5

Answer

2.5

Answer

3.5

Answer

4

Question 12

What are the coordinates for the center of dilation?

Accepted Answer

(3, 1)

Answer

(3, 0)

Answer

(0, 0)

Answer

(3, -2)

Question 13

What are the coordinates for the center of dilation?

Accepted Answer

(-3, -3)

Answer

(0, 0)

Answer

(-3, -1)

Answer

(-12, 6)

Question 14

Find the measure of x:

Accepted Answer

36

Answer

6

Answer

24

Answer

33

Question 15

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.

Accepted Answer

(-5,-3)

Answer

(5,3)

Answer

(20,12)

Answer

(-20,-12)

Question 16

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 r = 2.

Accepted Answer

(8,18)

Answer

(2,4.5)

Answer

(-8,-18)

Answer

(9,4)

Question 17

State the coordinates of the image of point C after a dilation with a scale factor of 1/2 and center point P.

Accepted Answer

(-6, 1)

Answer

(-3, -2)

Answer

(1, -6)

Answer

(-2, -3)

Question 18

State the coordinates of the image of point B after a dilation with a scale factor of 2 and centered at point A.

Accepted Answer

(-4,6)

Answer

(-4,2)

Answer

(-8,4)

Answer

(-2,-2)

Question 19

The red triangle has been dilated by a scale factor of 1/4 about the origin, which triangle is it's new image?

Accepted Answer

green triangle

Answer

red triangle

Answer

black triangle

Answer

none of these

Question 20

Under a dilation, which scale factor will result in a congruent image?

Accepted Answer

1

Answer

-2

Answer

0

Answer

1/2

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