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

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प्रश्न

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

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औचित्य

उत्तर

This cannot be a time-temperature graph since different temperatures at the same time are not possible. 

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  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 15: Introduction to Graphs - Exercise 15.1 [पृष्ठ २३९]

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एनसीईआरटी Mathematics [English] Class 8
अध्याय 15 Introduction to Graphs
Exercise 15.1 | Q 7.3 | पृष्ठ २३९

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?

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


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


The following table shows the sales of a commodity during the years 2000 to 2006.

Years: 2000 2001 2002 2003 2004 2005 2006
Sales (in lakhs of Rs): 1.5 1.8 2.4 3.2 5.4 7.8 8.6

Draw a graph of this information.


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

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?

Find out from the growth chart

  • Between which days did the length of the plant change the most?

A line graph can also be a whole unbroken line.


The following graph shows the number of people present at a certain shop at different times. Observe the graph and answer the following questions.

  1. What type of a graph is this?
  2. What information does the graph give?
  3. What is the busiest time of day at the shop?
  4. How many people enter the shop when it opens?
  5. About how many people are there in the shop at 1:30 pm?

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