Quiz about 8th grade Math Review 3

Question 1

Which graph is linear?

Accepted Answer

Graph D

Answer

Graph A

Answer

Graph B

Answer

Graph C

Question 2

Is the equation linear, exponential, or quadratic?
y = 2x+ 4

Accepted Answer

Linear

Answer

Exponential

Answer

Quadratic

Answer

None of the above

Question 3

What is the y-intercept of the function?

Accepted Answer

(0,3)

Answer

(0,2)

Answer

(0,1)

Answer

(0,-2)

Question 4

What is the y-intercept in the equation y= -2x + 5

Accepted Answer

5

Answer

-2

Answer

3

Answer

Cannot be Determined

Question 5

Dave owns a lawn business. He charges $10 per hour and a $25 dollar disposal fee. What is the correct equation Dave would use to find out how much to charge his customers?

Accepted Answer

y = 10x +25

Answer

y = 25x + 10

Answer

x = 25y + 10

Answer

x = 10y + 25

Question 6

What is the initial value of the following graph?

Accepted Answer

(0, 4)

Answer

(3, 0)

Answer

(0, 3)

Answer

(4, 0)

Question 7

What is the y-intercept?

Accepted Answer

(0,7)

Answer

(0, 0)

Answer

(0,1)

Answer

(0, 2)

Question 8

When writing an equation of a function, the rate of change is...

Accepted Answer

the number next to the input

Answer

the number being added or subtracted

Answer

The number without the variable

Answer

the "x"

Question 9

Find the slope between the two given points: (-2,1) and (5,7)

Accepted Answer

6/7

Answer

7/6

Answer

2

Answer

-2

Question 10

Which function is linear?

Accepted Answer

h(x)

Answer

f(x)

Answer

g(x)

Question 11

In order to join an online learning community, there is a $20 startup fee and a $5 monthly fee. Write an equation in slope-intercept form that models this situation.

Accepted Answer

y = 5x +20

Answer

y = 20x + 5

Answer

y = 25x

Answer

y = 5y + 20

Question 12

Does this graph represent a proportional relationship?

Accepted Answer

No, because it doesn't pass through the origin.

Answer

Yes, because it doesn't pass through the origin.

Answer

Yes, because it intersects the y axis.

Answer

No, because it intersects the x axis.

Question 13

Is the graph proportional or non-proportional?

Accepted Answer

Non-Proportional

Answer

Proportional

Question 14

Which graph is proportional?

Accepted Answer

All of the graphs are proportional

Answer

A

Answer

B

Answer

C and D

Question 15

REVIEW QUESTION
Is this table proportional or non-proportional?

Accepted Answer

Proportional

Answer

Non-Proportional

Question 16

What is the constant of proportionality?

Accepted Answer

16

Answer

8

Answer

24

Answer

2

Question 17

What are the main characteristics of a proportional relationship between two variables?

Accepted Answer

They are linear and also pass through the origin.

Answer

They pass through the origin.

Answer

They are curved

Answer

They have a negative relationship and pass through the origin.

Question 18

Is this proportional?
y=2x

Accepted Answer

yes

Answer

no

Question 19

Is this proportional?

Accepted Answer

no

Answer

yes

Question 20

When we compare variables in direct variation, we compare them as _____ over ______.

Accepted Answer

y over x

Answer

peanut butter over jelly

Answer

x over y

Answer

rate over one

Question 21

The equation y = 3x represents a direct variation relationship. What is the value of y when x=7?

Accepted Answer

21

Answer

7

Answer

10

Answer

4

Question 22

Is this a direct variation?

Accepted Answer

yes

Answer

no

Question 23

What ordered pair does a direct variation always go through when graphed?

Accepted Answer

(0, 0)

Answer

(1, 0)

Answer

(0, 1)

Answer

(1, 1)

Question 24

What is the best class evaaaa?

Accepted Answer

Math

Answer

Not Math

Question 25

The constant of proportionality can be found by finding the __________ _____________.

Accepted Answer

unit rate

Answer

ratio rate

Answer

proportion answer

Answer

rational number

Question 26

The constant of proportionality in the equation y = 4x is ________

Accepted Answer

4

Answer

y

Answer

x

Answer

=

Question 27

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 28

What is a transformation that turns a figure about a fixed point for a given angle?

Accepted Answer

Rotations

Answer

Point of Rotation

Answer

Vertex

Answer

Image

Question 29

What is a reflection?

Accepted Answer

When you flip or mirror an object across a line.

Answer

When you turn an object around a point.

Answer

When you slide an object form one place to another.

Answer

When you resize an object.

Question 30

A type of transformation where a geometric figure slides horizontally, vertically, or both. What type of transformation is this?

Accepted Answer

translation

Answer

dilation

Answer

rotation

Answer

reflection

Question 31

Identify the transformation.

Accepted Answer

Reflection across x-axis

Answer

Reflection across y axis

Answer

180 Rotation

Answer

Translation 2 units down

Question 32

How is the blue triangle rotated to the red triangle?

Accepted Answer

90 clockwise

Answer

90 counter-clockwise

Answer

180 clockwise

Question 33

Which of the following are congruence transformations?

Accepted Answer

All Three

Answer

Rotations

Answer

Translations

Answer

Reflections

Question 34

Rotating a pre-image _____degrees will place it back to its original position.

Accepted Answer

360

Answer

180

Answer

90

Answer

270

Question 35

Identify the single transformation performed

Accepted Answer

Dilation

Answer

Translation

Answer

Reflection

Answer

Rotation

8th grade Math Review 3

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