Quiz about 8th Grade Math Review

Question 1

How do you calculate slope using a graph?

Accepted Answer

rise over run

Answer

run over rise

Answer

look at the y intercept

Answer

look at the x intercept

Question 2

Find the slope of the line.

Accepted Answer

1/2

Answer

-1/2

Answer

2

Answer

-2

Question 3

Find the slope of the line.

Accepted Answer

0

Answer

Undefined

Answer

1

Answer

-1

Question 4

Find the slope of the line.

Accepted Answer

Undefined

Answer

0

Answer

1

Answer

-1

Question 5

In the equation y=mx+b, what does the m represent?

Accepted Answer

slope

Answer

y-intercept

Answer

linear

Answer

point-slope

Question 6

What is the slope in the equation y=2x + 3?

Accepted Answer

2

Answer

3

Answer

5

Answer

Cannot be Determined

Question 7

What does 'b" represent in y=mx=b

Accepted Answer

y-intercept

Answer

x-intercept

Answer

nothing

Answer

slope

Question 8

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

Accepted Answer

5

Answer

-2

Answer

3

Answer

Cannot be Determined

Question 9

How would you write the equation with a slope of 2/3 and a y-intercept of -3

Accepted Answer

y=2/3x-3

Answer

y=3/2x+3

Answer

y=2/3-3

Answer

y=2/3x+3

Question 10

In between what two integers is the square root of 77?

Accepted Answer

8 and 9

Answer

5 and 6

Answer

6 and 7

Answer

7 and 8

Question 11

Estimate the square root.

Accepted Answer

3

Answer

4

Answer

5

Answer

6

Question 12

Is the sequence arithmetic: 37, 31, 25, 19, ...

Accepted Answer

Yes

Answer

No

Question 13

Is the sequence 2, 4, 12, 48,... geometric?

Accepted Answer

no

Answer

yes

Question 14

The Pythagorean Theorem ONLY works on which triangle?

Accepted Answer

right

Answer

obtuse

Answer

scalene

Answer

isosceles

Question 15

_{^{Find the missing side}}

Accepted Answer

20

Answer

29.2

Answer

400

Answer

10

Question 16

What is the solution to the system of equations?
y = 3x - 8
y = 4 - x

Accepted Answer

(3,1)

Answer

(1,3)

Answer

(-3,1)

Answer

(3,-1)

Question 17

Solve the inequality:
x + 7 < 9

Accepted Answer

x < 2

Answer

x < 16

Answer

x < 63

Answer

x < - 2

Question 18

Simplify the exponential expression:

Accepted Answer

2x2

Answer

10x-2

Answer

2x12

Answer

10x12

Question 19

Simplify the exponential expression.

Accepted Answer

8x6y12

Answer

2x6y12

Answer

2x5y7

Answer

8x5y7

Question 20

Put the following in scientific notation:
23,948

Accepted Answer

2.3948 x 10⁴

Answer

23.948 x 10³

Answer

2.3948 x 10^-4

Answer

0.23948 x 10⁵

Question 21

Put the following number in scientific notation
0.004362

Accepted Answer

4.362 x 10^-3

Answer

4.362 x 10³

Answer

0.4362 x 10^-2

Answer

43.62 x 10^-4

Question 22

Multiply:
(3.4 x 10⁵)(1.2 x 10^-3)

Accepted Answer

4.08 x 10²

Answer

4.08 x 10^-8

Answer

4.8 x 102

Answer

4.08 x 10^-15

Question 23

Divide:
(6.9 x 10⁷) / (2.3 x 10^-3)

Accepted Answer

3 x 10¹⁰

Answer

3 x 104

Answer

3 x 10-4

Answer

3 x 10-11

Question 24

11b+7=40

Accepted Answer

3

Answer

2

Answer

1

Answer

4

Question 25

Solve for x:
52 = -5x - 3

Accepted Answer

x = -11

Answer

x = 11

Answer

x = 275

Answer

x = -275

Question 26

4 = 2(x + 3)

Accepted Answer

-1

Answer

1/2

Answer

7/2

Answer

5

Question 27

Parallel lines have __________ slopes

Accepted Answer

Equal

Answer

Opposite

Answer

Reciprocal

Answer

Total

Question 28

What slope is parallel to:
m = 3/4

Accepted Answer

3/4

Answer

4/3

Answer

-3/4

Answer

-4/3

Question 29

Slopes of perpendicular lines are...

Accepted Answer

opposite reciprocals.

Answer

opposites.

Answer

identical.

Answer

always 7.

Question 30

The following represents slopes of two lines. Which answer choice describes the two lines?
m = 7 and m = -7

Accepted Answer

Neither

Answer

Parallel

Answer

Perpendicular

Question 31

What is the slope of a line perpendicular to a line with slope ^-6/₅?

Accepted Answer

5/6

Answer

-6/5

Answer

-5/6

Answer

-4/3

Question 32

Slopes of perpendicular lines are...

Accepted Answer

opposite reciprocals.

Answer

opposites.

Answer

the same.

Answer

always 7.

Question 33

What type of Correlation?

Accepted Answer

Negative Correlation

Answer

Positive Correlation

Answer

No Correlation

Question 34

What type of Correlation?

Accepted Answer

No Correlation

Answer

Positive Correlation

Answer

Negative Correlation

Question 35

What type of correlation does this graph have?

Accepted Answer

positive

Answer

negative

Answer

none

Answer

all of the above

Question 36

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 37

In a scatterplot, an outlier...

Accepted Answer

...is a point that is far outside the main cluster of points/ordered pairs

Answer

...is something we didn't learn 8th grade

Answer

...is a puppet with a long nose named Pinocchio

Answer

...is a really naughty point who doesn't tell the truth when outside

Question 38

Find the slope of the line that passes through
(10, 1) and (5, 2)

Accepted Answer

-1/5

Answer

1/5

Answer

5

Answer

-5

Question 39

Find the slope of the line that passes through
(1, -19) and (-2, -7)

Accepted Answer

-4

Answer

4

Answer

1/4

Answer

-1/4

Question 40

Is this function linear or nonlinear?

Accepted Answer

Linear

Answer

Nonlinear

Question 41

Is the graph pictured a linear or nonlinear function?

Accepted Answer

Nonlinear

Answer

Linear

Question 42

Is this function linear or nonlinear?

Accepted Answer

Linear

Answer

Nonlinear

Question 43

Is the table linear or nonlinear?

Accepted Answer

Nonlinear

Answer

Linear

Question 44

Find the length of the missing side.

Accepted Answer

52 cm

Answer

25 cm

Answer

42 cm

Answer

48 cm

Question 45

Find the 10th term of this sequence:
{96, 48, 24, 12, ... }

Accepted Answer

3/16

Answer

1/2

Answer

6

Answer

3

Question 46

What is the 38th term of this sequence?
{26, 22, 18, 14, ... }

Accepted Answer

-122

Answer

-4

Answer

10

Answer

174

8th Grade Math Review

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