हिंदी

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

Advertisements
Advertisements

प्रश्न

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

आलेख
औचित्य
Advertisements

उत्तर

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

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

APPEARS IN

एनसीईआरटी Mathematics [English] Class 8
अध्याय 15 Introduction to Graphs
Exercise 15.1 | Q 7.2 | पृष्ठ २३९

संबंधित प्रश्न

For an experiment in Botany, two different plants, plant A and plant B were grown under similar laboratory conditions. Their heights were measured at the end of each week for 3 weeks. The results are shown by the following graph.

  1. How high was Plant A after (i) 2 weeks (ii) 3 weeks?
  2. How high was Plant B after (i) 2 weeks (ii) 3 weeks?
  3. How much did Plant A grow during the 3rd week?
  4. How much did Plant B grow from the end of the 2nd week to the end of the 3rd week?
  5. During which week did Plant A grow most?
  6. During which week did Plant B grow least?
  7. Were the two plants of the same height during any week shown here? Specify.

Use the tables below to draw linear graphs.

The number of days a hill side city received snow in different years.

Year 2003 2004 2005 2006
Days 8 10 5 12 

A courier-person cycles from a town to a neighboring suburban area to deliver a parcel to a merchant. His distance from the town at different times is shown by the following graph.

  1. What is the scale taken for the time axis?
  2. How much time did the person take for the travel?
  3. How far is the place of the merchant from the town?
  4. Did the person stop on his way? Explain.
  5. During which period did he ride fastest?

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

Find out from the growth chart

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

Study the given graph and complete the corresponding table below.


Plot a line graph for the variables p and q where p is two times q i.e, the equation is p = 2q. Then find the value of q when p = 8


Study the graph and answer the questions that follow.

  1. What information does the graph give?
  2. On which day was the temperature the least?
  3. On which day was the temperature 31°C?
  4. Which was the hottest day?


The following graph shows the change in temperature of a block of ice when heated. Use the graph to answer the following questions:

  1. For how many seconds did the ice block have no change in temperature?
  2. For how long was there a change in temperature?
  3. After how many seconds of heating did the temperature become constant at 0°C?
  4. What was the temperature after 25 seconds?
  5. What will be the temperature after 1.5 minutes? Justify your answer.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×