मराठी

Can there be a time-temperature graph as follows? Justify your answer.

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प्रश्न

Can there be a time-temperature graph as follows? Justify your answer.

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उत्तर

This can be a time-temperature graph, as the temperature can decrease with the decrease in time.

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  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 13: Introduction to Graphs - EXERCISE 13.1 [पृष्ठ १६३]

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एनसीईआरटी Mathematics [English] Class 8
पाठ 13 Introduction to Graphs
EXERCISE 13.1 | Q 7. (ii) | पृष्ठ १६३

संबंधित प्रश्‍न

The following line graph shows the yearly sales figures for a manufacturing company.

  1. What were the sales in (i) 2002 (ii) 2006?
  2. What were the sales in (i) 2003 (ii) 2005?
  3. Compute the difference between the sales in 2002 and 2006.
  4. In which year was there the greatest difference between the sales as compared to its previous year?

The following graph shows the temperature forecast and the actual temperature for each day of a week.

  1. On which days was the forecast temperature the same as the actual temperature?
  2. What was the maximum forecast temperature during the week?
  3. What was the minimum actual temperature during the week?
  4. On which day did the actual temperature differ the most from the forecast temperature?

The following table shows the number of patients discharged from a hospital with HIV diagnosis in different years:

Years: 2002 2003 2004 2005 2006
Number of patients: 150 170 195 225 230

Represent this information by a graph.


Draw the temperature-time graph in each of the following cases:

Time (in hours): 7:00 9:00 11:00 13:00 15:00 17:00 19:00 21:00
Temperature (°F) in: 100 101 104 102 100 99 100 98

Draw the velocity-time graph from the following data:

Time (in hours): 7:00 8:00 9:00 10:00 11:00 12:00 13:00 14:00
Speed (in km/hr): 30 45 60 50 70 50 40 45

The runs scored by two teams A and B in first 10 overs are given below:

Overs: I II III IV V VI VII VIII IX X
Team A: 2 1 8 9 4 5 6 10 6 2
Team B: 5 6 2 10 5 6 3 4 8 10

Draw a graph depicting the data, making the graphs on the same axes in each case in two different ways as a graph and as a bar chart.


The given graph describes the distances of a car from a city P at different times when it is travelling from City P to City Q, which are 350 km apart. Study the graph and answer the following:
(i) What information is given on the two axes?
(ii) From where and when did the car begin its journey?
(iii) How far did the car go in the first hour?
(iv) How far did the car go during (i) the 2nd hour? (ii) the 3rd hour?
(v) Was the speed same during the first three hours? How do you know it?
(vi) Did the car stop for some duration at any place? Justify your answer.
(vii) When did the car reach City Q?

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  • What could be the length of this plant on the 14th day? Guess.

Study the given graph and complete the corresponding table below.


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  1. the value of p when q = 3
  2. the value of q when p = 8

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