Quiz about 8th Grade Math Review 2

Question 1

Does the graph represent a function?

Accepted Answer

No, because the vertical line test shows there are repeating input values

Answer

Yes, because the vertical line test shows there are no repeating input values

Question 2

For the function {(0,1), (1,-3), (2,-4), (-4,1)}, write the domain and range.

Accepted Answer

D:{0, 1, 2, -4}
R:{1, -3, -4}

Answer

D: {1, -3, -4,}
R: {0, 1, 2, -4}

Answer

D:{0, 1, 2, 3, 4}
R:{1, -3, -4}

Answer

D:{0, 1, 2, 3}
R:{0, 1, 2, 3, 4}

Question 3

Does this mapping diagram represent a function?

Accepted Answer

Yes, because there are no repeating input values

Answer

No, because there are repeating input values

Question 4

Is relation shown a function?

Accepted Answer

NO

Answer

YES

Question 5

Is the relation a function?

Accepted Answer

YES

Answer

NO

Question 6

Is the relation a function?
{(-6, -1), (5,-1), (0, -1), (-2, -1), (3, -1)}

Accepted Answer

Yes

Answer

No

Question 7

Which equation matches the table?

Accepted Answer

y = 3x + 9

Answer

y = x + 9

Answer

y = x + 3

Answer

y = 12x - 3

Question 8

Which equation matches the table?

Accepted Answer

y = x + 5

Answer

y = 5x

Answer

y = x - 5

Answer

x = y - 5

Question 9

For the function f(x) = -3x + 3 find f(0).

Accepted Answer

3

Answer

0

Answer

-3

Answer

-1

Question 10

Is the equation linear or nonlinear?

Accepted Answer

Linear

Answer

Nonlinear

Question 11

Is the function Linear or Nonlinear?

Accepted Answer

Nonlinear

Answer

Linear

Question 12

A set of ordered pairs is called what?

Accepted Answer

Relation

Answer

Coordinates

Answer

Function

Answer

Vertical Line Test

Question 13

A relation where every input in matches with exactly one output is called what?

Accepted Answer

Function

Answer

Relation

Answer

Linear

Answer

Exponential

Question 14

What is the domain?

Accepted Answer

the set of all x-values

Answer

the set of all y-values

Question 15

What is the range?

Accepted Answer

the set of all y-values

Answer

the set of all x-values

Question 16

Which type of relation is shown?

Accepted Answer

Mapping

Answer

Graph

Answer

Table

Answer

Set of ordered pairs

Question 17

What direction is an undefined slope?

Accepted Answer

vertical

Answer

horizontal

Question 18

In which quadrant is the point (-2, -3) located?

Accepted Answer

III

Answer

I

Answer

II

Answer

IV

Question 19

Which axis is the horizontal axis?

Accepted Answer

x-axis

Answer

z-axis

Answer

y-axis

Answer

coordinate axis

Question 20

Which of the following are ways to find the rate of change?

Accepted Answer

all of the above

Answer

change in y over change in x

Answer

rise over run

Answer

subtract y coordinates over subtract x coordinates

Question 21

What is the slope of the line passing through the following points:
(1,3) & (5, 0)

Accepted Answer

-3/4

Answer

-4/3

Answer

3/4

Answer

4/3

Question 22

Find the slope of the line.

Accepted Answer

0

Answer

Undefined

Answer

1/1

Answer

-1/1

Question 23

Find the slope.

Accepted Answer

-1/3

Answer

-3

Answer

3

Answer

1/3

Question 24

Which runner was faster?

Accepted Answer

Runner B

Answer

Runner A

Question 25

Find the slope of the line.

Accepted Answer

Undefined

Answer

0

Answer

1/1

Answer

-1/1

Question 26

Find the slope from the table.

Accepted Answer

-4

Answer

1/4

Answer

-1/4

Answer

4

Question 27

What is the slope in the picture?

Accepted Answer

Negative

Answer

Positive

Answer

Zero

Answer

Undefined

Question 28

Rate of Change is the same as...

Accepted Answer

slope

Answer

y-intercept

Answer

initial value

Question 29

Y-Intercept is the same as...

Accepted Answer

Initial Value

Answer

Rate of Change

Answer

Slope

Question 30

Initial Value is the same as...

Accepted Answer

Y-Intercept

Answer

Slope

Answer

Rate of Change

Question 31

Rate of change means...

Accepted Answer

changes in y values

changes in x values

Answer

where the line crosses the y-axis

Answer

where the line ends

Question 32

What is the rate of change for the following graph?

Accepted Answer

40

Answer

80

Answer

20

Answer

160

Question 33

Find the slope

Accepted Answer

-3

Answer

3

Answer

20

Answer

Not a constant slope/Non-Linear

Question 34

Find the initial value

Accepted Answer

9

Answer

1

Answer

11

Answer

0

Question 35

What is the initial value in this equation?

y=8x+6

Accepted Answer

6

Answer

8

Answer

x

Answer

y

Question 36

What is the initial value of this graph?

Accepted Answer

1

Answer

-2

Answer

0

Answer

3

Question 37

What is the slope in the picture?

Accepted Answer

Positive

Answer

Negative

Answer

Zero

Answer

Undefined

Question 38

What is the initial value?

Accepted Answer

20

Answer

-3

Answer

0

Answer

3

Question 39

In order to join a yoga club there is a $100 annual fee and a $5 fee for each class you attend. What is the meaning of the initial value?

Accepted Answer

Annual Fee.

Answer

The fee per class.

Answer

# of classes attended.

Answer

Total amount spent on yoga.

Question 40

To start our Upper F hall lemonade stand, we spend $30 on lemonade mix and supplies, and we charge $1.50 for each cup sold. interpret the initial value

Accepted Answer

The amount spent on supplies.

Answer

# of cups sold.

Answer

The price per cup.

Answer

Amount of money earned in profit.

Question 41

How long did it take Sam to get to school?

Accepted Answer

20 minutes

Answer

5 minutes

Answer

1.25 km

Answer

1.25 minutes

Question 42

Match the scenario to its corresponding graph:

Ashley increased her speed as she took off from a stoplight until she saw another stoplight. When she saw the next stoplight, she decreased her speed until she came to a complete stop.

Accepted Answer

C

Answer

A

Answer

B

Question 43

Which equation best represents the line on the graph?

Accepted Answer

y= 1/2x

Answer

y= -1/2x

Answer

y = 2x

Answer

y = -2x

Question 44

Suppose that a bike rents for $4 plus $1.50 per hour. Write an equation in slope-intercept form that models this situation.

Accepted Answer

y = 1.50x + 4

Answer

y = 4x + 1.50

Question 45

What does "m" represent in y=mx+b?

Accepted Answer

slope

Answer

y-intercept

Answer

macaroni

Answer

nothing

Question 46

Evaluate

Accepted Answer

14

Answer

1

Answer

34

Answer

-56

Question 47

What is the type of correlation?

Accepted Answer

no correlation

Answer

Negative

Answer

positive

Question 48

What type of association does this graph have?

Accepted Answer

negative

Answer

positive

Answer

none

Answer

all of the above

Question 49

What type of association does this graph have?

Accepted Answer

positive

Answer

negative

Answer

none

Answer

all of the above

Question 50

Which scatter plot shows a linear relationship between x and y?

Accepted Answer

Graph C

Answer

Graph A

Answer

Graph B

Answer

Graph D

Question 51

What would be the correlation between study time and test grades?

Accepted Answer

positive

Answer

negative

Answer

none

Answer

cannot be determined

Question 52

The table shows how 50 students travel to school.
What is the relative frequency of a 7th grade student traveling to school by walking?

Accepted Answer

45%

Answer

30%

Answer

60%

Answer

40%

Question 53

You are analyzing a scatter plot that has a positive correlation. Which statement about the x and y values is true?

Accepted Answer

The x values increase and they y values increase.

Answer

The x values increase and y values decrease

Answer

The x and y values both decrease.

Question 54

Lesly graphed two lines in order to find the solution to a given system of equations.
What is the solution?

Accepted Answer

(-3,-8)

Answer

(-8,-3)

Answer

(3,-8)

Answer

(8,3)

Question 55

^{What is the solution?}

Accepted Answer

(1, -1)

Answer

1

Answer

-2

Answer

(1, 2)

Question 56

What is the solution?

Accepted Answer

(6, 3)

Answer

(3, 6)

Answer

(-6, 3)

Answer

No solution

Question 57

Parallel Lines never intersect because...

Accepted Answer

they have the same slopes.

Answer

they have the same y-intercept.

Answer

they have different slopes.

Answer

they have different y-intercepts.

Question 58

How many solutions does this system of equations have?

Accepted Answer

Infinitely Many Solutions

Answer

One Solution

Answer

No solution

Answer

Two Solutions

Question 59

Question 59.

Accepted Answer

No Solution

Answer

Infinitely Many Solutions

Question 60

What is the solution?

Accepted Answer

No solution

Answer

(0, 2)

Answer

(0, -4)

Answer

(3, -3)

Question 61

If a system of equations has no solution, what does the graph look like?

Accepted Answer

parallel lines

Answer

intersecting lines

Answer

skew lines

Answer

the same line

Question 62

Find the slope

Accepted Answer

4/5

Answer

5/4

Answer

-5/4

Answer

-4/5

Question 63

What is the first step in solving this equation:
5x + 7 = 12

Accepted Answer

Subtract 7

Answer

Divide by 5

Answer

Subtract 5

Answer

Multiply by 7

8th Grade Math Review 2

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