Quiz about Transformations retake Review

Question 1

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(3,3) B(6,6) C(9,3)

Accepted Answer

A'(9,9) B'(18,18) C'(27,9)

Answer

A'(6,6) B'(9,9) C'(12,6)

Answer

A'(0,0) B'(3,3) C'(6,0)

Answer

A'(1,1) B'(2,2) C'(3,1)

Question 2

Choose the correct scale factor:

Accepted Answer

2

Answer

3

Answer

1/3

Answer

1/2

Question 3

Enlargement or reduction?  Find the scale factor!

Accepted Answer

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

Answer

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

Answer

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

Answer

It's an enlargement; the scale factor is 1/2.

Question 4

Rotate the point (-3,-4) around the origin 180 degrees. State the image of the point.

Accepted Answer

(3,4)

Answer

(-4,-3)

Answer

(-4,3)

Answer

(4,-3)

Question 5

Reflect the point (2, -4) over the y-axis.

Accepted Answer

(-2, -4)

Answer

(-4, 2)

Answer

(-2, 4)

Answer

(2, 4)

Question 6

Reflect (6, -3) over the line x-axis.

Accepted Answer

(6, 3)

Answer

(-6, -3)

Answer

(-3, 6)

Answer

(3, -6)

Question 7

A transformation that flips each point of a shape over the same line is called a _______.

Accepted Answer

<p>Reflection</p>

Answer

Translation

Answer

<p>Rotation</p>

Answer

Transformation

Question 8

Mark casts a shadow that is 4 feet long. At the same time, a nearby tree casts a shadow that is 20 feet long. If Mark is 6 feet tall, which proportion could be use to find the height of the tree?

Accepted Answer

$$\frac{6}{4}=\frac{x}{20}$$

Answer

$$\frac{x}{20}=\frac{4}{6}$$

Answer

$$\frac{4}{6}=\frac{x}{20}$$

Answer

$$\frac{4}{20}=\frac{x}{6}$$

Question 9

A stop sign that is 7 feet tall casts a shadow that is 8 feet long. Which proportion could be used to find the length of the shadow casted by a nearby 63-foot tall building.

x = ___ ft

Accepted Answer

$$\frac{7}{8}=\frac{63}{x}$$

Answer

$$\frac{8}{x}=\frac{63}{7}$$

Answer

$$\frac{7}{8}=\frac{x}{63}$$

Answer

$$\frac{8}{7}=\frac{63}{x}$$

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