Which of the following statements best describes the purpose of a line graph?

To show trends and changes over time

To represent data with bars of different heights

To display data using pie slices

Test Your Knowledge About Line Graphs With This Quiz

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| By Tjkim

Tjkim

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Quizzes Created: 25 | Total Attempts: 70,110

Questions: 16 | Attempts: 2,778 | Updated: Jun 14, 2024

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Test Your Knowledge About Line Graphs With This Quiz - Quiz

Did you know what is line graph? In mathematics, a line graph is a graphical representation that consists of two-axis known as the 'X-axis and 'Y' axis, where the x-axis is the horizontal axis, whereas the y-axis is the vertical axis. Check out our algebra quiz based on line graphs and see how much you know and learn more.

Questions and Answers

1.

Which of the following statements best describes the purpose of a line graph?
- A.
  
  To compare parts of a whole
- B.
  
  To show trends and changes over time
- C.
  
  To represent data with bars of different heights
- D.
  
  To display data using pie slices
Correct Answer
B. To show trends and changes over time

Explanation
A line graph is used to show trends and changes over time. It displays data points connected by straight lines, making it easy to observe how values increase, decrease, or remain stable across a period. This type of graph is ideal for tracking variables such as temperature, stock prices, or population growth. Unlike bar graphs or pie charts, line graphs emphasize the progression and relationship between data points.

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3
0
2.

Between 2001 and 2005, by how much did the value of the car decrease?
- A.
  
  9,500
- B.
  
  950
- C.
  
  18,200
- D.
  
  1,820
Correct Answer
A. 9,500

Explanation
The value of the car decreased by 9,500 between 2001 and 2005.

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3.

Between February and April, how much weight did Sam lose?
- A.
  
  24
- B.
  
  15
- C.
  
  8
- D.
  
  7
Correct Answer
B. 15

Explanation
Sam lost 15 pounds between February and April.

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4.

What is the busiest time of day at the store?
- A.
  
  10 am
- B.
  
  3 pm
- C.
  
  1 pm
- D.
  
  6 pm
Correct Answer
C. 1 pm

Explanation
The busiest time of day at the store is likely to be 1 pm. This is because it is a common lunch hour for many people, and they may choose to visit the store during their break. Additionally, it is a time when people may have finished their morning activities and have some free time to go shopping.

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5.

At what time does business start to slow down?
- A.
  
  10 am
- B.
  
  6 pm
- C.
  
  1 pm
- D.
  
  3 pm
Correct Answer
D. 3 pm

Explanation
Business starts to slow down at 3 pm. This could be due to various reasons such as the end of the lunch hour, fatigue setting in after a long day, or people starting to wind down and prepare to leave work. It is a common time for a decrease in productivity and activity in many industries.

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1
0
6.

At what age do teens have the greatest number of cell phones?
- A.
  
  16
- B.
  
  17
- C.
  
  18
- D.
  
  19
Correct Answer
D. 19

Explanation
Teens have the greatest number of cell phones at the age of 19. This is because by this age, most teens have entered adulthood and have more independence and financial means to purchase their own cell phones. Additionally, at 19, many teens are in college or starting their careers, which may require them to have a cell phone for communication and convenience purposes.

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2
0
7.

What pulse rate was recorded at 2 minutes?
- A.
  
  85
- B.
  
  90
- C.
  
  95
- D.
  
  100
Correct Answer
C. 95

Explanation
The pulse rate recorded at 2 minutes was 95.

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1
0
8.

An infant's weight was recorded in pounds for each of 7 weeks. Here is the data: Week 1: 7.5 lbs; Week 2: 7.1 lbs; Week 3: 7.4 lbs; Week 4: 7.7 lbs; Week 5: 8.2 lbs; Week 6: 8.6 lbs; Week 7: 9.0 lbs. Which of the following line graphs shows all of these facts correctly?
- A.
- B.
- C.
Correct Answer
B.
9.

How much did John improve from his first test to his last test?
- A.
  
  19
- B.
  
  8
- C.
  
  10
- D.
  
  20
Correct Answer
A. 19

Explanation
John improved by 19 points from his first test to his last test.

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10.

At what age was the number of students almost the same for students who worked and did not work?
- A.
  
  14
- B.
  
  15
- C.
  
  16
- D.
  
  17
- E.
  
  18
Correct Answer
C. 16

Explanation
The number of students who worked and did not work was almost the same at the age of 16.

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2
0
11.

Who spent more money in February?
- A.
  
  Tom
- B.
  
  John
Correct Answer
B. John

Explanation
John spent more money in February compared to Tom.

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12.

In which year was enrollment the same for full-time and part-time students?
- A.
  
  1991
- B.
  
  1992
- C.
  
  1993
- D.
  
  1994
Correct Answer
C. 1993

Explanation
In 1993, the enrollment for full-time and part-time students was the same.

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13.

For Product A, between what two years did the profit stay the same?
- A.
  
  1995-1996
- B.
  
  1996-1997
- C.
  
  1997-1998
- D.
  
  1998-1999
Correct Answer
B. 1996-1997

Explanation
The profit for Product A stayed the same between the years 1996-1997.

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1
0
14.

Who smokes more, men or women?
- A.
  
  Men
- B.
  
  Women
Correct Answer
A. Men

Explanation
Men smoke more than women. This is a general observation based on statistical data and research studies. Historically, smoking has been more prevalent among men due to various factors such as cultural norms, targeted marketing, and social pressures. However, it is important to note that smoking rates can vary across different countries and demographics.

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2
0
15.

Between what two hours was the greatest increase in temperature?
- A.
  
  9am - 10am
- B.
  
  10am - 11am
- C.
  
  11am - 12pm
- D.
  
  2pm - 3pm
Correct Answer
A. 9am - 10am

Explanation
The greatest increase in temperature occurred between 9am and 10am.

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16.

In which year did the girls basketball team win more games than the boys?
- A.
  
  1988
- B.
  
  1989
- C.
  
  1990
- D.
  
  1991
Correct Answer
B. 1989

Explanation
The girls basketball team won more games than the boys in 1989.

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