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प्रश्न
The following table gives the information regarding the number of persons employed to a piece of work and time taken to complete the work:
| Number of persons: | 2 | 4 | 6 | 8 |
| Time taken (in days): | 12 | 6 | 4 | 3 |
Plot a graph of this information.
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उत्तर
Here, number of persons is an independent variable and time taken is a dependent variable. So, we take the number of persons on the x-axis and time taken on the y-axis.
Let us choose the following scale:
On x-axis: 2 cm = 2 persons
On y-axis: 2 cm = 2 days
Now, let us plot (2, 12), (4, 6), (6, 4), (8, 3). These points are joined to get the graph representing the given information as shown in the figure below.
संबंधित प्रश्न
Locate the points:
(1, 4), (2, 4), (3, 4), (4, 4).
Find the coordinates of points P, Q, R and S in Fig. 27.8.
Decide which of the following statements is true and which is false. Give reasons for your answer.
The coordinates of the origin are (0, 0).
The x-coordinate of any point lying on the y-axis will be ______.
Plot the given points on a graph sheet.
- (5, 4)
- (2, 0)
- (3, 1)
- (0, 4)
- (4, 5)
Write the y-coordinate (ordinate) of the given point.
(2, 7)
If y-coordinate is 3 times x-coordinate, form a table for it and draw a graph.
Explain the situations represented by the following distance-time graph.
The following table gives the growth chart of a child.
| Height (in cm) | 75 | 90 | 110 | 120 | 130 |
| Age (in years) | 2 | 4 | 6 | 8 | 10 |
Draw a line graph for the table and answer the questions that follow.
- What is the height at the age of 5 years?
- How much taller was the child at the age of 10 than at the age of 6?
- Between which two consecutive periods did the child grow more faster?
