Quiz about 7th Grade Math Review

Question 1

A rectangle is dilated by a scale factor of 2. What is the ratio of the sides of the original rectangle to the sides of the dilated rectangle?

Accepted Answer

Option B

Answer

Option A

Answer

Option C

Answer

Option D

Question 2

What is the effect of a scale factor of 3 on the coordinates of a point (2, 4) after dilation?

Accepted Answer

Option A

Answer

Option B

Answer

Option C

Answer

Option D

Question 3

If a triangle with vertices at (1, 2), (3, 4), and (5, 6) is dilated by a scale factor of 0.5, what are the new coordinates of the vertices?

Accepted Answer

Option B

Answer

Option A

Answer

Option C

Answer

Option D

Question 4

How does a scale factor of 2 affect the area of a square on the coordinate plane?

Accepted Answer

Option C

Answer

Option A

Answer

Option B

Answer

Option D

Question 5

What is the algebraic representation of a dilation with a scale factor of 1.5 centered at the origin?

Accepted Answer

Option D

Answer

Option A

Answer

Option B

Answer

Option C

Question 6

Order the following set of real numbers from least to greatest: -3, 2.5, 0, -1.5, 4.

Accepted Answer

-3, -1.5, 0, 2.5, 4

Answer

-1.5, -3, 0, 2.5, 4

Answer

0, -1.5, -3, 2.5, 4

Question 7

Which of the following sets of real numbers is correctly ordered from greatest to least?

Accepted Answer

4, 2.5, 0, -1.5, -3

Answer

2.5, 4, 0, -1.5, -3

Answer

0, 2.5, 4, -1.5, -3

Question 8

Arrange the following real numbers in ascending order: 3.14, -2, 0.5, -1, 2.

Accepted Answer

-2, -1, 0.5, 2, 3.14

Answer

0.5, -1, -2, 2, 3.14

Answer

-1, -2, 0.5, 2, 3.14

Question 9

Which number is the smallest in the given set: -5, 1.2, -3.8, 0?

Accepted Answer

-5

Answer

1.2

Answer

-3.8

Answer

0

Question 10

Convert 0.00045 to scientific notation.

Accepted Answer

4.5 x 10^-4

Answer

4.5 x 10^-5

Answer

4.5 x 10^-6

Question 11

Convert ( 5.67 x 10^-3 ) to standard decimal notation.

Accepted Answer

0.00567

Answer

0.0567

Answer

0.567

Question 12

What is the slope of the line that models the proportional relationship ( y = 2x )?

Accepted Answer

2

Answer

1/2

Answer

0

Question 13

How does the unit rate relate to the slope of the line in a proportional relationship?

Accepted Answer

It is the same as the slope.

Answer

It is half of the slope.

Answer

It is double the slope.

Answer

It is unrelated to the slope.

Question 14

How does the y-intercept affect the graph of the linear equation?

Accepted Answer

It shifts the graph up or down.

Answer

It changes the slope.

Answer

It rotates the graph.

Answer

It reflects the graph.

Question 15

Two rectangles are similar. If the ratio of their corresponding sides is 3:5 and the smaller rectangle has a width of 9 cm, what is the width of the larger rectangle?

Accepted Answer

15 cm

Answer

12 cm

Answer

18 cm

Answer

21 cm

Question 16

A model car is built to a scale of 1:20. If the actual car is 4 meters long, how long is the model car?

Accepted Answer

0.4 meters

Answer

0.2 meters

Answer

0.6 meters

Answer

0.8 meters

Question 17

Which number is the largest in the given set: -1, 2.5, -3.8, 0?

Accepted Answer

2.5

Answer

-1

Answer

-3.8

Answer

0

Question 18

Convert 0.00078 to scientific notation.

Accepted Answer

7.8 x 10^-4

Answer

7.8 x 10^-3

Answer

7.8 x 10^-5

Answer

7.8 x 10^-2

Question 19

Which of the following is the correct scientific notation for 0.000123?

Accepted Answer

1.23 x 10^-4

Answer

1.23 x 10^-3

Answer

1.23 x 10^-5

Answer

1.23 x 10^-2

Question 20

A reflection flips the graph of a function across a line, such as the $$x-$$ or $$y-$$ axis.

Accepted Answer

True

Answer

False

Question 21

Multiplying the outputs by $$-1$$ reflects the graph across the x-axis

Accepted Answer

True

Answer

False

Question 22

Does the image show a Dilation?

Accepted Answer

Yes

Answer

No

Question 23

What scale factor was used for the dilation shown?

Accepted Answer

1/2

Answer

1

Answer

2

Answer

3

Question 24

Describe the Transformation

Accepted Answer

Rotation

Answer

Translation

Answer

Reflection

Question 25

Complete each proportion.
CB / DM = AC / ?

Accepted Answer

AD

Answer

BM

Answer

MA

Answer

BC

Question 26

A tree is 12 feet tall and casts a shadow 9 feet long. A building nearby casts a shadow that measures 24 feet. How tall is the building? (Draw a picture, set up a proportion)

Accepted Answer

32 feet

Answer

24 feet

Answer

21 feet

Answer

27 feet

Question 27

Pentagon QRSTU is similar to pentagon EFGHI.

Choose the correct proportion.

Accepted Answer

$$\frac{RS}{FG}=\frac{TU}{HI}$$

Answer

$$\frac{RS}{HI}=\frac{TU}{FG}$$

Answer

$$\frac{ ext{}RQ}{GH}=\frac{ST}{FE}$$

Answer

$$\frac{QU}{EI}=\frac{HG}{ST}$$

Question 28

Isla, Ava, and Evelyn are architects working on a project. They noticed that the blueprint of Building A and Building B are similar in structure. Can you help them figure out which proportion of the buildings must be true?

Accepted Answer

$$\frac{ST}{EF\ }=\ \frac{WR}{CD}$$

Answer

$$\frac{RS}{AB\ }\ =\ \frac{TU}{CD}$$

Answer

$$\frac{TU}{AB}\ =\ \frac{UV}{AF}$$

Answer

$$\frac{WV}{AB}=\ \frac{ST}{EF}$$

Question 29

Fairview and Rockville are 104 miles from each other. How far apart would the cities be on a map that has a scale of 1 cm : 13 miles?

Solve the proportion.

Accepted Answer

8 cm

Answer

7 cm

Answer

1352 cm

Answer

4 cm

Question 30

Question 30.

Accepted Answer

D

Answer

A

Answer

B

Answer

C

Question 31

The fronts of the houses are identical. Side AB is congruent to side AE. What is the length of side AB?

Accepted Answer

20 ft

Answer

12 ft

Answer

32 ft

Question 32

Are these two figures congruent?

Accepted Answer

yes

Answer

no

Answer

maybe

Question 33

Tell whether the figures are congruent or not congruent.

Accepted Answer

Not Congruent

Answer

Congruent

Question 34

Tell whether the two figures are congruent.

Accepted Answer

Yes, same size and same shape

Answer

No, same shape but different sizes

Answer

No, different size and different shapes

Question 35

Two objects that are the same shape but not the same size are _______.

Accepted Answer

Similar

Answer

Congruent

Answer

Vertical

Answer

Complementary

Question 36

What is the formula for scale factor?

Accepted Answer

$$\frac{image}{preimage}\ or\ \frac{A$$

Answer

$$\frac{preimage}{image}\ or\ \frac{A}{A$$

Question 37

What is ratio of any two corresponding sides?

Accepted Answer

Scale Factor

Answer

Corresponding Sides

Answer

Similar Figures

Question 38

Two objects that are the same shape but not the same size are _______.

Accepted Answer

Similar

Answer

Congruent

Answer

Vertical

Answer

Complementary

Question 39

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

Accepted Answer

an enlargement

Answer

a reduction

Answer

a scale

Answer

not proportional

Question 40

Matching sides are called

Accepted Answer

Corresponding Sides

Answer

Corresponding Angles

Answer

The Same

Answer

Congruent Sides

Create a free account and access millions of resources

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Mathematics