 8th Grade Math Review
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Practice 55 QuestionsShow answers
• Question 1
30 seconds
Q. How do you calculate slope using a graph?
rise over run
run over rise
look at the y intercept
look at the x intercept
• Question 2
180 seconds Q. Find the slope of the line.
1/2
-1/2
2
-2
• Question 3
180 seconds Q. Find the slope of the line.
Undefined
0
1
-1
• Question 4
180 seconds Q. Find the slope of the line.
Undefined
0
1
-1
• Question 5
300 seconds
Q. In the equation y=mx+b, what does the m represent?
slope
y-intercept
linear
point-slope
• Question 6
300 seconds
Q. What is the slope in the equation y=2x + 3?
2
3
5
Cannot be Determined
• Question 7
300 seconds
Q. What does 'b" represent in y=mx=b
y-intercept
x-intercept
nothing
slope
• Question 8
300 seconds
Q. What is the y-intercept in the equation
y= -2x + 5
-2
3
5
Cannot be Determined
• Question 9
30 seconds
Q. How would you write the equation with a slope of 2/3 and a y-intercept of -3
y=3/2x+3
y=2/3-3
y=2/3x-3
y=2/3x+3
• Question 10
30 seconds
Q. Which number is irrational?
9.6
√45
3/8
3.4 x 10 ⁵
• Question 11
30 seconds
Q. Which number is rational?
∛51
√94
∛12
√64
• Question 12
30 seconds
Q. In between what two integers is the square root of 77?
5 and 6
6 and 7
7 and 8
8 and 9
• Question 13
30 seconds Q. Estimate the square root.
3
4
5
6
• Question 14
30 seconds
Q. Is the sequence arithmetic: 37, 31, 25, 19, ...
Yes
No
• Question 15
30 seconds
Q. Is the sequence 2, 4, 12, 48,... geometric?
yes
no
• Question 16
30 seconds
Q. The Pythagorean Theorem ONLY works on which triangle?
obtuse
scalene
isosceles
right
• Question 17
300 seconds Q. Find the missing side
29.2
20
400
10
• Question 18
300 seconds
Q. What is the solution to the system of equations?
y = 3x - 8
y = 4 - x
(3,1)
(1,3)
(-3,1)
(3,-1)
• Question 19
300 seconds
Q. Solve the system of equations.
y = 4x+1
3x + 2y = 13
(1, 5)
(5, 1)
(0.25, 2)
• Question 20
120 seconds
Q. Solve the inequality:
x + 7 < 9
x < 2
x < 16
x < 63
x < - 2
• Question 21
60 seconds
Q. Match:
You must be at least 48 inches tall to ride the bumper cars.
h < 48
h > 48
h ≤ 48
h ≥ 48
• Question 22
30 seconds
Q. 5³⋅5⁴
5⁷
5⁻¹
5¹²
5
• Question 23
30 seconds
Q. (2⁸)²
2¹⁶
2¹⁰
2⁶
2⁴
• Question 24
30 seconds
Q. 8⁷ ⁄ 8²
8⁵
8⁹
8¹⁴
1⁵
• Question 25
45 seconds
Q. 3⁻⁴
1 ⁄ 34
-34
34
1 ⁄ 12
• Question 26
60 seconds
Q. (3y⁴)²
9y⁸
9y⁶
6y⁸
6y⁶
• Question 27
300 seconds Q. Simplify the exponential expression:
10x-2
2x2
2x12
10x12
• Question 28
300 seconds Q. Simplify the exponential expression.
2x6y12
2x5y7
8x6y12
8x5y7
• Question 29
180 seconds
Q. Put the following in scientific notation:
23,948
23.948 x 103
2.3948 x 104
2.3948 x 10-4
0.23948 x 105
• Question 30
180 seconds
Q. Put the following number in scientific notation
0.004362
4.362 x 103
4.362 x 10-3
0.4362 x 10-2
43.62 x 10-4
• Question 31
120 seconds
Q. Multiply:
(3.4 x 105)(1.2 x 10-3)
4.08 x 10-8
4.8 x 102
4.08 x 102
4.08 x 10-15
• Question 32
120 seconds
Q. Divide:
(6.9 x 107) / (2.3 x 10-3)
3 x 1010
3 x 104
3 x 10-4
3 x 10-11
• Question 33
180 seconds
Q. 11b+7=40
2
1
4
3
• Question 34
180 seconds
Q. Solve for x:
52 = -5x - 3
x = 11
x = -11
x = 275
x = -275
• Question 35
180 seconds
Q. 4 = 2(x + 3)
1/2
7/2
-1
5
• Question 36
60 seconds
Q. Parallel lines have __________ slopes
Equal
Opposite
Reciprocal
Total
• Question 37
60 seconds
Q. What slope is parallel to:
m = 3/4
4/3
3/4
-3/4
-4/3
• Question 38
60 seconds
Q. Slopes of perpendicular lines are...
opposite reciprocals.
opposites.
identical.
always 7.
• Question 39
60 seconds
Q. The following represents slopes of two lines.  Which answer choice describes the two lines?
m = 7 and m = -7
Parallel
Perpendicular
Neither
• Question 40
60 seconds
Q. What is the slope of a line perpendicular to a line with slope -6/?
-6/5
-5/6
5/6
-4/3
• Question 41
60 seconds
Q. Slopes of perpendicular lines are...
opposite reciprocals.
opposites.
the same.
always 7.
• Question 42
180 seconds Q.

What type of Correlation?

Positive Correlation

Negative Correlation

No Correlation

• Question 43
180 seconds Q.

What type of Correlation?

Positive Correlation

Negative Correlation

No Correlation

• Question 44
900 seconds Q.

What type of correlation does this graph have?

positive

negative

none

all of the above

• Question 45
900 seconds Q.

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

Graph A

Graph B

Graph C

Graph D

• Question 46
60 seconds
Q. In a scatterplot, an outlier...
...is something we didn't learn 8th grade
...is a puppet with a long nose named Pinocchio
...is a point that is far outside the main cluster of points/ordered pairs
...is a really naughty point who doesn't tell the truth when outside
• Question 47
120 seconds
Q. Find the slope of the line that passes through
(10, 1) and (5, 2)
1/5
-1/5
5
-5
• Question 48
120 seconds
Q. Find the slope of the line that passes through
(1, -19) and (-2, -7)
-4
4
1/4
-1/4
• Question 49
30 seconds Q. Is this function linear or nonlinear?
Linear
Nonlinear
• Question 50
60 seconds Q. Is the graph pictured a linear or nonlinear function?
Linear
Nonlinear
• Question 51
30 seconds Q. Is this function linear or nonlinear?
Linear
Nonlinear
• Question 52
60 seconds Q. Is the table linear or nonlinear?
Linear
Nonlinear
• Question 53
300 seconds Q. Find the length of the missing side.
25 cm
42 cm
52 cm
48 cm
• Question 54
60 seconds
Q. Find the 10th term of this sequence:
{96, 48, 24, 12, ... }
3/16
1/2
6
3
• Question 55
45 seconds
Q. What is the 38th term of this sequence?
{26, 22, 18, 14, ... }