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8th Grade Maths (Scatter Plots, graphs, histograms)

Total questions: 32

Worksheet time: 8hrs 0mins

Name
Class
Date
1.

Sao can text 1500 words per hour. He needs to text a message with 85 words. He only has 5 minutes between classes to complete the text. Can he do it in 5 minutes?

a)

Yes

b)

No

2.

Where would the point (11, −18) be after the transformation:

Reflect (11, −18) across the x‑axis, and then reflect that point across the y‑axis.

a)

(−11, 18)

b)

(-11,-18)

c)

(11,-18)

d)

(11,18)

3.

Where would the point (11, −18) be after this transformation:


a)

(16, 21)

b)

(-16, 21)

c)

(16, −21)

d)

(-16, -21)

4.

Ruthie did a survey among her classmates comparing the time spent playing video games to the time spent studying. The scatterplot of her data is shown here.


What association can you make from her data?

a)

Perfect positive association

b)

Moderate negative association

c)

Perfect negative association

d)

Moderate positive association

5.

Ruthie did a survey among her classmates comparing the time spent playing video games to the time spent studying. The scatterplot of her data is shown here.


Use an ordered pair (x, y) to identify any outliers.

a)

(140, 100)

b)

(-140, 100)

c)

(140, -100)

d)

(100, 140)

6.
What type of correlation does this scatter plot represent?
a)
positive linear association
b)
negative linear association
c)
no association
d)
nonlinear association
7.
The scatter plot shows the relationship between the number of chapters and the total number of pages for several books.  Use the trend line to predict how many chapters would be in a book with 140 pages. 
a)
12 chapters
b)
19 chapters
c)
14 chapters
d)
21 chapters
8.
How many students take the bus to school?
a)
35
b)
20
c)
10
d)
15
9.
How many students are between 48 and 51 inches tall?
a)
14
b)
8
c)
2
d)
0
10.
Which statement below accurately represents the graph?
a)
$100 is earned for each hour worked
b)
$100 is earned for every 2 hours worked
c)
$500 is earned for every 8 hours worked
d)
$200 is earned for every 3 hours worked
11.
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
12.
Find the slope of the line.
a)
1/2
b)
-1/2
c)
2
d)
-2
13.
Which equation is equivalent to 
12(4x-5)=18?
a)
4x-5=6
b)
4x-5=30
c)
48x+60=18
d)
48x-60=18
14.
Barnard’s Star is approximately 35,133 billion miles from Earth. What is 35,133 billion in scientific notation?
a)
3.5113x109
b)
35.113x1013
c)
3.5113x1013
d)
3.5113x1010
15.
The graph shows that the price of bananas depends on the number of pounds purchased.  What is the unit rate for this data?
a)
$5 per pound
b)
$1.25 per pound
c)
$1.00 per pound
d)
$0.80 per pound
16.
What is the compound interest formula is ______________.  
a)
A = P(2+r)t 
b)
I= Prt
c)
A2 + B2 = C2
d)
A = P(1+r)t 
17.
Principal = $350.
Interest rate = 2.5%
TIme = 3 years.
How much simple interest?
a)
$7.50
b)
$26.25
c)
$87.5
d)
$262.50
18.
Interest can be defined as:
a)
a charge for lending money
b)
the amount owed for borrowing money
c)
the amount added into your savings account when opening a bank account
d)
a charge for convenience of accessing money in your bank
19.
The simple interest formula is I=Prt.  The P represents the principle.  The principle is ___________________.  
a)
the amount of money borrowed or deposited
b)
the percent interest for his year
c)
the amount taxed
d)
the amount the bank owes you for being a customer at their bank
20.
Find the simple interest to the nearest cent. $575 at 6.25% for 7 years.
a)
$249.55
b)
$2,515.63
c)
$251.56
d)
$25.15
21.
The simple interest formula is I=Prt.  The r represents the rate. The rate is ___________________.  
a)
the amount of money borrowed or deposited
b)
the percent interest for his year
c)
the percentage charged or earned on the principle amount
d)
the amount the bank owes you for being a customer at their bank
22.
Write an equation for this relationship.
a)
y=18x
b)
y=18.50x
c)
y=22.50x
d)
y=22x
23.
What makes a graph proportional?
a)
Linear
b)
The line goes through the origin
c)
Curvy line
d)
Linear and the line goes through the origin
24.
What is a unit rate?
a)
A comparison of two quantities where the denominator is always 1 unit
b)
A rate that compares 2 different quantities
c)
a rate with units 
d)
a comparison of two quantities where the first quantity is always 1
25.
Is this table proportional?
a)
Yes
b)
No
26.
Which equation shows a NON-proportional relationship of x and y?
a)
y = 5x
b)
y = -5.6x
c)
y = x + 3
d)
y = 1/2x
27.
Which graph is proportional?
a)
A
b)
B
c)
C and D
d)
All of the graphs are proportional
28.
Which graph is non-proportional?
a)
A
b)
B
c)
C
d)
D
29.
Which line shows a proportional relationship between x and y?
a)
Line L
b)
Line M
30.
1/3 ÷ 4 ¾ =
a)
4/9
b)
57/4
c)
4/57
d)
4/59
31.
Simplify  14/35
a)
3
b)
2/5
c)
5/2
d)
7/17.5
32.
What is a Ratio?
a)
A comparison of two quantities 
b)
To multiply two fractions 
c)
A number over another number
d)
Two decimals that can be multiplied

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