Table of contents |
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What is a Line Graph? |
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Basic Concepts |
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Types of Line Graphs |
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Tips to Solve Line Graphs |
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Examples |
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Line Graph
The following is a basic example of a line graph, with its numerous components:
Examine the graph below for its various components
Q1: At what time the number of boys was highest at the centre?
Ans: Based on the graph, it is clear that the number of boys was highest at 16:00 o’clock.
Q2: At what time the total number of students was lowest at the centre?
Ans: To determine the answer to this issue, add the number of boys and girls at various hours.
At 12:00 o’clock total number of students = 90
At 13:00 o’clock total number of students = 130
At 14:00 o’clock total number of students = 110
At 15:00 o’clock total number of students = 110
So the answer is that the number of pupils was highest around 13:00 o’clock.
Q3: During what period the rate of growth of the number of girls were highest?
Ans: Looking at the graph, we can see that the red line is steepest between 12:00 and 13:00, indicating that this is when the number of girls is growing the fastest.
We may check it using the following formula:
Between 12:00 and 13:00, 13:00 and 14:00, 14:00 and 15:00, and 15:00 and 1600, the growth rate is 50 percent, 16.66 percent, – 28.56 percent, and -40 percent, respectively.
The following are the types of the line graph. They are:
Vertical line graphs are graphs in which a vertical line extends from each data point down to the horizontal axis. Vertical line graph sometimes also called a column graph. A line parallel to the y-axis is called a vertical line.
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Test: Line Charts- 1
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Horizontal line graphs are graphs in which a horizontal line extends from each data point parallel to the earth. Horizontal line graph sometimes also called a row graph. A line parallel to the x-axis is called a vertical line
A line graph is a graph formed by segments of straight lines that join the plotted points that represent given data. The line graph is used to solve changing conditions, often over a certain time interval. A general linear function has the form y = mx + c, where m and c are constants.
The fundamental rule at the rear of sketching a linear graph is that we require only two points to graph a straight line. The subsequent procedure is followed in drawing linear graphs:
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Line Graphs: Introduction & Examples (with Solutions)
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Answer the following questions using the data given in the graph below
Q1.What was the total revenues in 2011?
a. Rs. 640 Crores
b. Rs. 725 Crores
c. Rs. 760 Crores
d. Rs. 680 Crores
Sol: We know 2010 revenues by division and 2011 growth rates by division. We just need to put these two together.
2011 revenues were Rs. 725 Crores.
Hence, the answer is "Rs. 725 Crores".
Choice B is the correct answer.
Q2: In the year 2013, what was the share of revenues of the division Pharma?
a. 27%
b. 35%
c. 19%
d. 22%
Sol: Once again, we can compute 2013 numbers using actual 2012 numbers and 2013 growth rates by division.
The share of Pharma is 22%.
Hence, the answer is "22%".
Choice D is the correct answer.
Q3: Which year saw the highest percentage growth in revenues overall?
Sol:
The maximum year on year growth rate was seen in 2009.
We could have obtained this by scanning at the growth rate graph as well. The Pharma number is off the charts and all 4 growth rates are positive. The 21% growth rate in Technology is also pretty high. So, here was an easy question that we have gone about in a roundabout fashion.
194 videos|168 docs|152 tests
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1. What is a line graph and what is its purpose? | ![]() |
2. What are the basic components of a line graph? | ![]() |
3. What are the different types of line graphs? | ![]() |
4. How can I effectively interpret a line graph? | ![]() |
5. What are some common mistakes to avoid when creating a line graph? | ![]() |