AnswersMath 7 A M12 2526 S1Unit Test

Unit Test — Unit test Answers

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1
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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.
2
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Liliana wants to determine the height of an enlarged photo that she plans to frame. The original photo was 11 inches wide by 14 inches high. The new photo will be 132 inches wide. What will the new height be? Round to the nearest inch if necessary.

1
104 inches
1
146 inches
1
154 inches
1
168 inches
3

Which is the scale factor proportion for the enlargement shown? Not drawn to scale

Question illustration
A
Option
Option A
B
Option
Option B
C
Option
Option C
D
Option
Option D
4

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
5

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
6

Gigi makes a scale drawing of a patio. The drawing below shows the two scales she used to plan two patios of different sizes.Which shows the correct dimensions of the rectangle in both scales?

Question illustration
A
Scale 1: 40 ft by 56 ft; Scale 2: 35 ft by 40 ft
B
Scale 1: 56 ft by 25 ft; Scale 2: 35 ft by 40 ft
C
Scale 1: 35 ft by 25 ft; Scale 2: 56 ft by 40 ft
D
Scale 1: 56 ft by 40 ft; Scale 2: 35 ft by 25 ft
7

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
8

The diagram represents the enlargement of a rectangle by using a scale factor of 6. What are the dimensions of the original rectangle?

Question illustration
5
5 feet by 1 foot
5
5 feet by 6 feet
2
25 feet by 1 foot
1
180 feet by 36 feet
9

Sonny substituted 5 for x in the proportion and cross multiplied to get . Why is this?

Question illustration
A
because the cross sums of the proportion are equal
B
because the cross differences of the proportion are equal
C
because the cross products of the proportion are equal
D
because the cross quotients of the proportion are equal
10

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.
11

Michel uses the scale drawing and the scale factor to enlarge a square that has a side length of 12 in.Which proportion could Michel use to solve the side length, x, of the enlarged square?

Question illustration
A
Option
Option A
B
Option
Option B
C
Option
Option C
D
Option
Option D
12

Why is a solution to the proportion ?

Question illustration
A
because 192 divided by 32 is equal to 6
B
because 192 divided by 36 is equal to 6
C
because if you substitute 6 into the equation for x and cross multiply, you get
Option C
D
because if you substitute 6 into the equation for x and cross multiply, you get
Option D
13

Why is “3 meals a day” a unit rate?

A
It compares 1 meal to 1 day.
B
It compares 1 meal to 3 days.
C
It compares 3 meals to 1 day.
D
It compares 3 meals to 3 days.
14

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
15

Miguel babysits for 3 hours and earns $15. Which represents the unit rate?

A
$1 per 5 hours
B
$15 per hour
C
1 hour per $5
D
$5 per hour
16

The area of the scale model of a playground is 6 square yards. The scale model is enlarged by a scale factor of 3 to create the actual playground. What is the area of the actual playground?

1
18 square yards
5
54 square yards
1
108 square yards
3
324 square yards
17

Tara reads at a rate of 15 pages per day. Which table represents this relationship?Table ANumber of DaysNumber of Pages115230345Table BNumber of DaysNumber of Pages151302453Table CNumber of DaysNumber of Pages115225335Table DNumber of DaysNumber of Pages151252353

A
Table A
B
Table B
C
Table C
D
Table D
18

A picture is photocopied by using a scale factor of 2. Each side of the photocopy of the picture is

Question illustration
e
enlarged by a factor of 2.
e
enlarged by a factor of .
Option e
r
reduced by a factor of 2.
r
reduced by a factor of .
Option r
19

Meg skateboards of a mile in of an hour. At this rate, how far will she skateboard in an hour?

Question illustration
A
of a mile
Option A
B
of a mile
Option B
C
of a mile
Option C
D
of a mile
Option D
20

The scale drawing of a rectangular room will be enlarged by a scale factor of 4 to create the actual room. The actual area of the room will be 150 square feet. Which expression finds the area of the scale drawing?

Question illustration
A
Option
Option A
B
Option
Option B
C
Option
Option C
D
Option
Option D

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