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8th Review

Total questions: 62

Worksheet time: 4hrs 40mins

Name
Class
Date
1.

In a scatterplot, an outlier...

a)

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

b)

...is a point on the origin

c)

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

d)

...is a group of points that are close together

2.
What is the type of association?
a)
Negative 
b)
no association
c)
positive 
3.
What type of association does this graph have?
a)
positive
b)
negative
c)
none
d)
all of the above
4.
In a scatterplot, a cluster...
a)
...is something we didn't learn in 8th grade
b)
...is a point on the origin
c)
...is a point that is far outside the main cluster of points/ordered pairs
d)
...is a group of points that are close together
5.
What is the correlation between length of running start and distance of jump?
a)
positive:  the further you run the further you jump
b)
negative: the less you run the less distance of your jump
c)
positive: the further your running start the less your distance
6.
The scatter plot below shows the number of books read by students in Mrs. Hall’s English class and their final grades. Which statement represents the best description about the line of best fit?
a)
The more books students read, the lower their English grade.
b)
The more books students read, the higher their English grade.
c)
The fewer books students read, the higher their English grade. 
d)
No relationship exists between the number of books students read and their English grades. 
7.

A line drawn on a scatter plot that is close to most of the data points.

a)

Best fitting line

b)

Best Linear Line

c)

Line of best fit

8.

Is this line an accurate line estimate of best fit for the data?

a)

Yes

b)

No

9.
Write the equation that best matches the graph shown.
a)
y = 4x
b)
y = 4x - 3
c)
y = 4/3 x + 4
d)
y = 4/3 x - 3
10.

Is this line an accurate line estimate of best fit for the data?

a)

Yes

b)

No

11.

What is the equation of the line of best fit

a)

y= -2x + 10

b)

y= 10x+ 2

c)

y=2x+10

d)

y= 10

12.
The graph shows a line of best fit for data collected on the amount of income earned by lawn companies in relation to the number of yards mowed.  What is the equation of the line of best fit?
a)
y = (3/2) x
b)
y = 30x
c)
y = 30x + 300
d)
y = (3/2)x + 300
13.

A city manager made a scatter plot of the number of retail stores in the city over the years. A scatter plot had a trend line with an equation of y=11x+12, where y is the total number of retail stores and x is the number of years since 1990.

Use the equation to predict the number of retail stores in the city in 1997. (7 years later).

a)

89

b)

77

c)

7

d)

98

14.

numbers that can be written as a fraction and when converted to a decimal either terminates or eventually repeats [example: ½, 0.75, −6.2‾  -6.\overline{2}\ \ ]

a)

Rational Numbers

b)

Decimal Expansion

c)

Irrational Numbers

d)

Standard Notation

15.

numbers that are non-terminating and non-repeating decimals [example: π]

a)

Rational Numbers

b)

Decimal Expansion

c)

Irrational Numbers

d)

Radical

16.

the form of a number that has a decimal point either actually present or implied as in a whole number [example: 4.36, 4.99032, 2.7, 5]

a)

Scientific Notation

b)

Decimal Expansion

c)

Exponent

d)

Radical

17.

the symbol that is used to represent roots [example: √ ]

a)

Exponent

b)

Radical

c)

Cube Root

d)

Quotient Rule

18.

the solution to a number that has been multiplied by itself twice 

[example: 52 = (5)(5) = 25]

a)

Perfect Square

b)

Product Rule

c)

Perfect Cube

d)

Square Root

19.

the inverse of squaring a number [example: √25 = 5]

a)

Perfect Square

b)

Square Root

c)

Cube Root

d)

Perfect Cube

20.

the solution to a number that has been multiplied by itself three times

[example: 53 = (5)(5)(5) = 125]

a)

Perfect Square

b)

Square Root

c)

Cube Root

d)

Perfect Cube

21.

the inverse of cubing a number [example: ∛125 = 5]

a)

Perfect Square

b)

Square Root

c)

Cube Root

d)

Perfect Cube

22.

Which number is the BASE?

23 = 8

a)

2

b)

3

c)

8

23.
According to exponent rules, when we multiply exponential expressions we _______ the exponents.
a)
add
b)
subtract
c)
multiply
d)
divide
24.
Simplify the expression.
a)
76
b)
7-5
c)
1/75
d)
75
25.
(52)3
a)
56
b)
55
c)
57
d)
58
26.
According to exponent rules, when we divide the expressions we _______ the exponents.
a)
add
b)
subtract
c)
multiply
d)
divide
27.

505^0  

a)

5

b)

1

c)

0

d)

undefined

28.

Which expressions are equivalent to 4−24^{-2}

a)

16

b)

142\frac{1}{4^2}  

c)

14−2\frac{1}{4^{-2}}  

d)

116\frac{1}{16}  

29.

Which expression is equilvalent to 125\frac{1}{25}  

a)

5−25^{-2}  

b)

525^2  

c)

25−225^{-2}  

30.

The measure of angle 1 is 60 degrees. What is the measure of angle 5?

31.

You know the measure of angle 8 because of what relationship?

a)

supplementary to angle 6

b)

corresponding to angle 4

c)

supplementary to angle 7

d)

vertical to angle 5

32.

The measure of angle 1 is 60 degrees. What is the measure of angle 2?

33.

Angle 1 and angle 2 have a ​ (a)   relationship.

Choose from the below words
supplementary
complimentary
vertical
alternate interior
alternate exterior
34.

Match the following

a)
1.

Supplementary

b)
2.

Alternate Interior

c)
3.

Alternate Exterior

d)
4.

Corresponding

e)
5.

Vertical

35.

What is the value of x?

36.

What is the value of x?

37.
What are supplementary angles?
a)
Angles that add up to 180°
b)
Angles that add up to 90°
c)
Angles that are equal to each other
d)
Angles that are opposite of each other when lines intersect
38.
What are complementary angles?
a)
Angles that add up to 180°
b)
Angles that add up to 90°
c)
Angles that are equal to each other
d)
Angles that are opposite of each other when lines intersect.
39.

How are these angles related?

a)

Vertical

b)

Complementary

c)

Adjacent

d)

Supplementary

40.

What kind of angles are shown?(45 + 135 = 180)

a)

complementary

b)

supplementary

c)

adjacent and supplementary

d)

corresponding

41.
Vertical angles are always
a)
acute
b)
total 180 degrees
c)
congruent (equal measures)
d)
adjacent angles
42.

The angle relationship shown is -

a)

complementary angles

b)

supplementary angles

c)

vertical angles

d)

adjacent and complementary angles

43.
∠1 and ∠3 can best be described as -
a)
complementary angles
b)
supplementary angles
c)
vertical angles
d)
adjacent angles
44.
What is an example of a pair of complementary angles?
a)
13° and 45°
b)
10° and 170°
c)
81° and 9°
d)
90° and 3°
45.
What is the supplement of 12°?
a)
78°
b)
180°
c)
168°
d)
90°
46.
What is the complement angle to 12°?
a)
78°
b)
68°
c)
168°
d)
90°
47.
Find the volume of the cylinder, leave your answer in terms of π
a)
9π in3
b)
90π in3
c)
282.743π in3
d)
30π in3
48.

If f(x) = 7, what is the value of x?

f(x) = 3x+1

a)

2

b)

83\frac{8}{3}

c)

3

d)

8

49.

7x+8=297x+8=29

The first step to solve this equation is to ​ (a)   . The next step is to ​ (b)   . The answer is ​ (c)   .

Choose from the below words
subtract 8
divide 7
x=3
add 8
multiply 7
subtract 7
x=2
x=5.2
x=7
divide 8
50.
What is the solution to the system?
a)
(3, -1)
b)
(2, -6)
c)
No Solution 
d)
(6, -2)
51.

Graph the equation

y=43x+1y=\frac{4}{3}x+1

52.

Graph the equation

y=−15xy=-\frac{1}{5}x

53.

Graph the equation

y=3x−5y=3x-5

54.

Graph the equation

y=−x+4y=-x+4

55.

What is the slope of this table?

a)

15

b)

6

c)

1/6

d)

-6

56.

What is the slope of this graph?

a)

3

b)

-3

c)

4

d)

1/3

57.

What is the correct equation for the given information?

Slope = 3

Y-Intercept = 2

a)

y = 2x + 3

b)

y = 1/2x + 3

c)

y = 3x - 2

d)

y = 3x + 2

58.

Write the equation of the line using point-slope form if you are given these 2 points.

(-4 , 6) and (2 , -2)

a)

12\frac{1}{2}  

b)

34\frac{3}{4}  

c)

−43\frac{-4}{3}  

d)

2

59.

Match each description with the best possible correlation.

a)

The temperature outside and ice cream sales

1.

Positive Correlation

b)

Total time spent playing video games and the number of cars you own

2.

No Correlation

c)

The number of days absent from school and your final grade in a class

3.

Negative Correlation

60.

Match each description with the best possible correlation.

a)

The temperature outside and ice cream sales

1.

Positive Correlation

b)

Total time spent playing video games and the number of cars you own

2.

No Correlation

c)

The number of days absent from school and your final grade in a class

3.

Negative Correlation

61.

How many more people ages 11-20 are at the park than people ages 21-30?

62.

The first oranges were orange?

a)

True

b)

False

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