मराठी

The Following Table Shows the Number of Patients Discharged from a Hospital with Hiv Diagnosis in Different Years: - Mathematics

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प्रश्न

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.

थोडक्यात उत्तर
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उत्तर

Here, years is an independent variable and the number of patients is a dependent variable. So, we take years on the x-axis and the number of patients on the y-axis.
Let us choose the following scale:
On x-axis: 2 cm = 1 year
On y-axis: 1 cm = 10 patients
Also, let us assume that on the x-axis, origin (O) represents 2001 and on the y-axis, origin (O) represents 120, i.e. O (2001, 120).
Now, let us plot (2002, 150), (2003, 170), (2004, 195), (2005, 225), (2006, 230). These points are joined to get the graph representing the given information as shown in the figure below.

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  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 27: Introduction to Graphs - Exercise 27.2 [पृष्ठ १५]

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आरडी शर्मा Mathematics [English] Class 8
पाठ 27 Introduction to Graphs
Exercise 27.2 | Q 1 | पृष्ठ १५

संबंधित 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?

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?

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?

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


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


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


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

Time (in hours): 8:00 10:00 12:00 14:00 16:00 18:00 20:00
Temperature (°F) in: 100 101 104 103 99 98 100

Study the given graph and complete the corresponding table below.


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?


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