AnswersWHS Pre-Algebra - MA3119 A-CRTopic Test

Tables, Graphs, and Equations Answers

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Four representations of the same data are shown below.Verbal DescriptionShay pays a $4 monthly fee in addition to the data and minutes charges on her cell phone bill, x.Equationy = x + 4TableGraphCell Phone BillWhich two representations are considered to be only partial representations?

Question illustration
A
the equation and the verbal description
B
the verbal description and the graph
C
the table and the equation
D
the graph and the table
2
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Water from a leaking faucet is dripping into a cylindrical cup. The height of water in inches, y, after x hours is graphed below.Dripping WaterWhich describes the pattern of the data in the graph?

Question illustration
A
The water level increases by 1 inch each hour.
B
The water level increases by 2 inches each hour.
C
The water level increases by a factor of each hour.
Option C
D
The water level increases by a factor of 2 each hour.
3

Some states pay $0.05 for each can that is recycled. Which graph represents the amount of money earned, y, by recycling x cans in these states?

A
A graph titled Recycling Money has cans on the x-axis and dollars on the y-axis. A line goes through points (20, 1) and (40, 2).
Option A
B
A graph titled Recycling Money has cans on the x-axis and dollars on the y-axis. A line goes through points (1, 20) and (2, 40).
Option B
C
A graph titled Recycling Money has cans on the x-axis and dollars on the y-axis. A line goes through points (0, 5) and (1, 6).
Option C
D
A graph titled Recycling Money has cans on the x-axis and dollars on the y-axis. A line goes through points (5, 0) and (6, 1).
Option D
4

The table below shows the amount that must be repaid, y, when x dollars are borrowed. Amount BorrowedAmount Repaid$100$135$200$260$500$635$800$1,010Which equation represents the relationship?

A
y = StartFraction 5 Over 4 EndFraction x
Option A
B
y = StartFraction 4 Over 5 EndFraction x
Option B
C
y = StartFraction 5 Over 4 EndFraction x + 10
Option C
D
y = StartFraction 4 Over 5 EndFraction x + 55
Option D
5

Which table of values corresponds to the graph below?

Question illustration
A
A 2-column table with 4 rows. Column 1 is labeled x with entries negative 3, 0, 3, 6. Column 2 is labeled y with entries negative 1, 0, 1, 2.
Option A
B
A 2-column table with 4 rows. Column 1 is labeled x with entries negative 1, 0, 1, 2. Column 2 is labeled y with entries negative 3, 0, 3, 6.
Option B
C
A 2-column table with 4 rows. Column 1 is labeled x with entries negative 1, 0, 1, 6. Column 2 is labeled y with entries negative 1, 0, 1, 2.
Option C
D
A 2-column table with 4 rows. Column 1 is labeled x with entries negative 1, 0, 1, 2. Column 2 is labeled y with entries negative 1, 0, 1, 6.
Option D
6

Each time Kristine gets paid, she spends $20 and saves the rest. If the amount Kristine earns is represented by x and the amount she saves is represented by y, which graph models her savings?

A
A graph titled Kristine's Savings has money earned on the x-axis and money saved on the y-axis. A line goes through points (5, 100) and (10, 200).
Option A
B
A graph titled Kristine's Savings has money earned on the x-axis and money saved on the y-axis. A line goes through points (20, 1) and (40, 2).
Option B
C
A graph titled Kristine's Savings has money earned on the x-axis and money saved on the y-axis. A line goes through points (0, 20) and (10, 30).
Option C
D
A graph titled Kristine's Savings has money earned on the x-axis and money saved on the y-axis. A line goes through points (20, 0) and (25, 5).
Option D
7

Kelly and Greta are asked to write an equation for the scenario below. “One person was able to plant 4 trees in the same amount of time that 5 people working together were able to plant 20 trees.”The girls agree that x represents the number of people working and y represents the number of trees planted. Kelly wrote the equation , and Greta wrote the equation . Which person is correct, and why?

Question illustration
A
Kelly is correct; each person plants more trees than the person before them.
Option A
B
Kelly is correct; and .
Option B
C
Greta is correct; each person plants 4 more trees than the person before them.
D
Greta is correct; and .
Option D
8

The table below shows the predicted number of words Janae can type, y, in x minutes. Time (x, in minutes)Words Typed (y)5150103001545020600Which describes the pattern in the table?

A
Janae types 25 words each minute.
B
Janae types 30 words each minute.
C
Janae types 145 words each minute.
D
Janae types 150 words each minute.
9

Anderson is a plumber and is paid a fixed amount just to make a house visit. The remainder of his fee, y, is determined by the number of hours that he works, x, as shown below.Plumber ChargesWhich equation represents the graph?

Question illustration
A
y = 10x – 50
B
y = 10x + 50
C
y = 50x – 10
D
y = 50x + 10
10

An animal shelter estimates that it costs about $6 per day to care for each dog. If y represents the total cost of caring for a single dog for x days, which table models the situation?

A
A 2-column table with 3 rows. Column 1 is labeled x with entries 12, 15, 18. Column 2 is labeled y with entries 6, 9, 12.
Option A
B
A 2-column table with 3 rows. Column 1 is labeled x with entries 6, 9, 12. Column 2 is labeled y with entries 12, 15, 18.
Option B
C
A 2-column table with 3 rows. Column 1 is labeled x with entries 36, 54, 72. Column 2 is labeled y with entries 6, 9, 12.
Option C
D
A 2-column table with 3 rows. Column 1 is labeled x with entries 6, 9, 12. Column 2 is labeled y with entries 36, 54, 72.
Option D

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