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8th Grade Review

Total questions: 45

Worksheet time: 3hrs 55mins

Name
Class
Date
1.
Simplify the expression: 
c4⋅c3=
a)
c12
b)
c4+3
c)
c7
2.
(2⁸)²
a)
2¹⁶
b)
2¹⁰
c)
2⁶
d)
2⁴
3.

x6 / x2

a)

x4

b)

x12

c)

x3

d)

x8

4.
a)
b)
c)
d)
5.

x-3

a)

-x3

b)

1 / x3

c)

1 / x-3

d)

-x-3

6.

How would you write 4.3756 x 104 in standard form?

(a)  

7.

How would you write 0.0005 in scientific notation?

a)

50 x 10-5

b)

5 x 10-4

c)

5 x 103

d)

.5 x 103

8.

Express the following in scientific notation:


.000457

a)

457 x 106

b)

457 x 10-6

c)

4.57 x104

d)

4.57 x 10-4

9.
Multiply:
(3.4 x 105)(1.2 x 10-3)
a)
4.08 x 10-8
b)
4.8 x 102
c)
4.08 x 102
d)
4.08 x 10-15
10.
Divide:
(6.9 x 107) / (2.3 x 10-3)
a)
3 x 1010
b)
3 x 104
c)
3 x 10-4
d)
3 x 10-11
11.
Solve for f:
f - 4 = 6f + 26
a)
f = -5
b)
f = 5
c)
f = 6
d)
f = -6
12.
Solve for x:
5x - 14 = 8x + 4
a)
x = 6
b)
x = -6
c)
x = -18/13
d)
x = 10/3
13.
Solve the equation
4x - 5x + 9 =5x - 9
a)
x = -3
b)
x = 9
c)
x = 3
d)
x = -9
14.
Solve:
3x + 15 = 3(x + 5)
a)
No Solution
b)
x = 15
c)
Infinitely Many Solutions
15.

8z - 22 = 3 ( 3z + 11) -z

a)

No Solution

b)

x= 7

c)

Infinite Solutions

16.

What is the correct slope-intercept form?

a)

y = mx + b

b)

y = mb + x

c)

y = x

d)

y = -mx + b

17.

What would the slope of the graph be?

a)

Positive

b)

Negative

c)

0

d)

Undefined

18.

Write the equation of the line in slope-intercept form.

a)

y = -2x - 5

b)

y = 2x - 5

c)

y = -2x

d)

y = -1/2x - 5

19.

Write an equation for the line in slope-intercept form.

a)

y = 1/2x

b)

y = -1/2x

c)

y = 2x + 1

d)

y = -2x - 2

20.

Jackson started with $800 in his savings account, but has to pay $30 a month for his electricity bill. Write an equation that relates his savings, y, to the amount of months, x.

a)

y = -30x + 800

b)

y = 30x - 800

c)

y = -30x

d)

y = 12x - 30

21.
What is the definition of function?
a)
Has inputs and outputs
b)
Every input has only ONE output
c)
Inputs have different outputs every time
d)
x-values and y-values
22.
a)
Function
b)
Not a Function
23.
Is this mapping a function or not a function? 
a)
Function
b)
Not a Function
24.
Is this table a function or not a function? 
a)
Function
b)
Not a Function
25.
Find the slope of the line that passes through the points (2, 4) and (6, 12)
a)
1/2
b)
-1/2
c)
2
d)
-2
26.

What is the trend for this scatter plot

a)

Negative

b)

Positive

c)

None

27.

About what should the number of manatees be by the year 2015?

a)

3000

b)

2500

c)

5000

d)

6000

28.
What is the type of association?
a)
Negative 
b)
no association
c)
positive 
29.
What type of correlation is shown in the scatter plot?
a)
Positive Linear Correlation
b)
Negative Linear Correlation
c)
Non-Linear Correlation
d)
No Correlation
30.

Make a prediction for a resting heart rate after 6 hours of exercise a week.

a)

6

b)

50

c)

55

d)

80

31.
What is the measure of ∠8?
a)
55
b)
155
c)
135
d)
45
32.
What is the measure of ∠6?
a)
55
b)
155
c)
45
d)
135
33.
Name the corresponding angle to angle 4.
a)
angle 8
b)
angle 6
c)
angle 2
d)
angle 5
34.
In a triangle, how many total degrees are there?
a)
100%
b)
180 degrees
c)
it varies
d)
360 degrees
35.
Find the measure of the indicated angle. 
a)
95
b)
85
c)
35
d)
45
36.
Find the missing side
a)
9
b)
41
c)
6.4
d)
3
37.
What is the height of the cone? 
a)
14 cm
b)
8 cm
c)
12 cm
d)
13.9 cm
38.
Find the missing side
a)
48
b)
108
c)
83.6
d)
72
39.
The Pythagorean Theorem is
a2 + b3 = c4
a)
false
b)
true
40.
Find the distance.
a)
7.1
b)
7.8
c)
8.7
d)
8.9
41.
What is this formula used to find?
V=πr2h
a)
The volume of a cylinder
b)
The volume of a cone
c)
The volume of a sphere
d)
The area of a circle
42.
What is this formula used to find?
V=1/3πr2h
a)
The volume of a cylinder
b)
The volume of a cone
c)
The volume of a sphere
d)
The area of a circle
43.
What is this formula used to find?
V=4/3πr3
a)
The volume of a cylinder
b)
The volume of a cone
c)
The volume of a sphere
d)
The area of a circle
44.
A cylinder has a height of 3in and a radius of 3 inches. What is the volume?
a)
9π in3
b)
27π in3
c)
81π in3
d)
3π in3
45.
A cylinder has a height of 9 cm and a radius of 4 cm. What is the volume?
a)
36π  cm3
b)
144π cm3
c)
324π cm3
d)
16π cm3

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