Unit Test — Unit test Answers

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What is the value of p in the proportion below?

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A
2
B
10
C
40
D
72
2
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Mika wrote the table of points below. xy023568Which explains whether or not Mika has described a proportional relationship, and why?

A
Mika has described a proportional relationship because the ordered pairs are linear and the line passes through the origin.
B
Mika has not described a proportional relationship. Although it is a linear relationship, it does not pass through the origin.
C
Mika has not described a proportional relationship. Although it passes through the origin, it is not a linear relationship.
D
Mika has described a proportional relationship because the line does not pass through the origin.
3

Sarah drove 40 miles per hour. In 3 hours, Sarah drove 120 miles. Which is a valid proportion to represent this description?

A
StartFraction 40 over 1 EndFraction = StartFraction 120 over 3 EndFraction
Option A
B
StartFraction 1 over 40 EndFraction = StartFraction 120 over 3 EndFraction
Option B
C
StartFraction 40 over 3 EndFraction = StartFraction 120 over 1 EndFraction
Option C
D
StartFraction 1 over 40 EndFraction = StartFraction 120 over 3 EndFraction
Option D
4

If there are 5 apples to every 3 oranges in a bin, which graph represents the proportional relationship of the fruit in the bin?

A
On a coordinate plane, a graph titled Fruit bin has apples on the x-axis and oranges on the y-axis. Points (3, 5) and (6, 10) are plotted.
Option A
B
On a coordinate plane, a graph titled Fruit bin has apples on the x-axis and oranges on the y-axis. Points (4, 3) and (8, 6) are plotted.
Option B
C
On a coordinate plane, a graph titled Fruit bin has apples on the x-axis and oranges on the y-axis. Points (8, 3) and (16, 6) are plotted.
Option C
D
On a coordinate plane, a graph titled Fruit bin has apples on the x-axis and oranges on the y-axis. Points (5, 3) and (10, 6) are plotted.
Option D
5

Which ordered pair would form a proportional relationship with the point graphed below?

Question illustration
A
(10, –20)
B
(–30, 20)
C
(–10, 5)
D
(35, –20)
6

The unchanging value of the ratio between two proportional quantities is

A
the constant of proportionality.
B
the constant rate.
C
the x-value of an ordered pair.
D
the y-value of an ordered pair.
7

Antonio jogs 2 laps every 5 minutes. Which point represents this relationship?

Question illustration
A
A
B
B
C
C
D
D
8

Which table represents the same proportional relationship as the graph?

Question illustration
A
A 2-column table with 4 rows. Column 1 is labeled x with entries 0, 3, 6, 9. Column 2 is labeled y with entries 0, 4, 8, 12.
Option A
B
A 2-column table with 4 rows. Column 1 is labeled x with entries 0, 3, 6, 9. Column 2 is labeled y with entries 1.33, 4, 8, 12.
Option B
C
A 2-column table with 4 rows. Column 1 is labeled x with entries 0, 4, 8, 12. Column 2 is labeled y with entries 0.75, 3, 6, 9.
Option C
D
A 2-column table with 4 rows. Column 1 is labeled x with entries 0, 4, 8, 12. Column 2 is labeled y with entries 0, 3, 5, 9.
Option D
9

Which table represents the same proportional relationship as the equation ?

Question illustration
A
A 2-column table with 4 rows. Column 1 is labeled x with entries 0.5, 2, 3, 6. Column 2 is labeled y with entries 36.5, 38, 39, 42.
Option A
B
A 2-column table with 4 rows. Column 1 is labeled x with entries 0.5, 2, 3, 6. Column 2 is labeled y with entries 64, 18, 12, 6.
Option B
C
A 2-column table with 4 rows. Column 1 is labeled x with entries 0.5, 2, 3, 6. Column 2 is labeled y with entries 18, 72, 108, 216.
Option C
D
A 2-column table with 4 rows. Column 1 is labeled x with entries 0.5, 2, 3, 6. Column 2 is labeled y with entries 36, 36, 36, 36.
Option D
10

The constant of proportionality for the amount of electricity in kilowatt hours and the cost per kilowatt hour is $0.11. Which graph models this situation?

A
A line graph titled Electricity Cost has Kilowatt hours on the x-axis and Cost in dollars on the y-axis. 100 Kilowatt hours is 11 dollars; 250, 27 dollars and 50 cents.
Option A
B
A line graph titled Electricity Cost has Kilowatt hours on the x-axis and Cost in dollars on the y-axis. 100 Kilowatt hours is 9 dollars; 250, 22 dollars and 50 cents.
Option B
C
A line graph titled Electricity Cost has Kilowatt hours on the x-axis and Cost in dollars on the y-axis. 100 Kilowatt hours is 12 dollars; 250, 30 dollars.
Option C
D
A line graph titled Electricity Cost has Kilowatt hours on the x-axis and Cost in dollars on the y-axis. 100 Kilowatt hours is 13 dollars; 250, 32 dollars and 50 cents.
Option D
11

A group of 32 players forms 4 volleyball teams. If there are 96 players, how many teams can be formed?

A
3 teams
B
8 teams
C
12 teams
D
24 teams
12

On Monday, the Dairy Barn sold 14 waffle cones for every 6 sugar cones. On Tuesday, the Dairy Barn sold 7 waffle cones for every 3 sugar cones. Which proportion can be used to represent the cone sales?

A
StartFraction 14 over 6 EndFraction = StartFraction 3 over 7 EndFraction
Option A
B
StartFraction 14 over 6 EndFraction = StartFraction 7 over 3 EndFraction
Option B
C
StartFraction 6 over 14 EndFraction = StartFraction 7 over 3 EndFraction
Option C
D
StartFraction 3 over 7 EndFraction = StartFraction 14 over 6 EndFraction
Option D
13

Based on the table, what is the unit rate for one gallon of gasoline?GasolineNumber of gallonsPrice2$6.603$9.904$13.20

A
$3.30
B
$4.60
C
$5.60
D
$6.50
14

Which graph represents a proportional relationship?

A
On a coordinate plane, a straight line with positive slope goes through points (0, 0), (1, 2), and (2, 4).
Option A
B
On a coordinate plane, a vertical line is at x = negative 3.
Option B
C
On a coordinate plane, a horizontal line is at y = 3.
Option C
D
On a coordinate plane, a curved line goes through the origin.
Option D
15

Simon is trying to figure out how much it will cost to buy 30 cases of water for a school picnic. How much will Simon pay for 30 cases of water? Water Prices by the CaseNumber of casesPrice in dollars1566.002088.0035154.00

A
$99.00
B
$119.00
C
$121.00
D
$132.00
16

Which equation represents a proportional relationship that has a constant of proportionality equal to –10?

A
y = x minus 10
Option A
B
y = StartFraction over negative 10 EndFraction
Option B
C
y = negative 10 x
Option C
D
y = negative 10
Option D
17

What does point B represent on the graph?John’s EarningsHours WorkedMoney1$7.002$14.003$21.00

Question illustration
A
John earns $14.00 each hour.
B
John earns $14.00 for two hours of work.
C
John earns $7.00 for two hours of work.
D
John earns $7.00 for four hours of work.
18

Which table of ordered pairs represents a proportional relationship?

A
A 2-column table with 3 rows. Column 1 is labeled x with entries negative 2, negative 4, negative 6. Column 2 is labeled y with entries 4, 16, 36.
Option A
B
A 2-column table with 3 rows. Column 1 is labeled x with entries negative 4, negative 6, negative 8. Column 2 is labeled y with entries negative 8, negative 12, negative 18.
Option B
C
A 2-column table with 3 rows. Column 1 is labeled x with entries negative 3, negative 5, negative 7. Column 2 is labeled y with entries 5, 3, 1.
Option C
D
A 2-column table with 3 rows. Column 1 is labeled x with entries negative 3, negative 6, negative 9. Column 2 is labeled y with entries 12, 24, 36.
Option D
19

Which equation represents a proportional relationship that has a constant of proportionality equal to ?

Question illustration
A
y = x + StartFraction 4 over 5 EndFraction
Option A
B
y = StartFraction 4 over 5 EndFraction x
Option B
C
x y = StartFraction 4 over 5 EndFraction
Option C
D
x + y = StartFraction 4 over 5 EndFraction
Option D
20

Each batch of Blueberry Breakfast Treats will make 12 muffins. Mrs. Penney wants to make enough muffins for each of the 35 students in her math club and herself to have one.Blueberry Breakfast TreatsNumber of Batches1234Cups of Blueberries------If she does not want any leftovers, which point should Mrs. Penney use to determine the amount of blueberries she will need to make her muffins?

Question illustration
A
A
B
B
C
C
D
D

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