मराठी

The following graph shows the temperature of a patient in a hospital, recorded every hour. (a) What was the patient’s temperature at 1 p.m.? (b) When was the patient’s temperature 38.5°C? - Mathematics

Advertisements
Advertisements

प्रश्न

The following graph shows the temperature of a patient in a hospital, recorded every hour.

  1. What was the patient’s temperature at 1 p.m.?
  2. When was the patient’s temperature 38.5°C?
  3. The patient’s temperature was the same two times during the period given. What were these two times?
  4. What was the temperature at 1.30 p.m.? How did you arrive at your answer?
  5. During which periods did the patients’ temperature showed an upward trend?
आलेख
लघु उत्तर
Advertisements

उत्तर

  1.  At 1 p.m., the patient’s temperature was 36.5°C.
  2. The patient’s temperature was 38.5°C at 12 noon.
  3. The patient’s temperature was same at 1 p.m. and 2 p.m.
  4. The graph between 1 p.m. and 2 p.m. is parallel to the x-axis. The temperature at 1 p.m. and 2 p.m. is 36.5°C. So, the temperature at 1:30 p.m. is 36.5°C.
  5.  During the following periods, the patient’s temperature showed an upward trend.9 a.m. to 10 a.m., 10 a.m. to 11 a.m., 2 p.m. to 3 p.m.
shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 13: Introduction to Graphs - EXERCISE 13.1 [पृष्ठ १६०]

APPEARS IN

एनसीईआरटी Mathematics [English] Class 8
पाठ 13 Introduction to Graphs
EXERCISE 13.1 | Q 1. | पृष्ठ १६०

संबंधित प्रश्‍न

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?

Use the tables below to draw linear graphs.

Population (in thousands) of men and women in a village in different years.

Year 2003 2004 2005 2006 2007
Number of men 12 12.5 13 13.2 13.5
Number of women 11.3 11.9 13 13.6 12.8 

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.


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

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

A line graph can also be a whole unbroken line.


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.

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

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×