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

(a) What was the patient’s temperature at 1 pm?

(b) When was the patient’s temperature 38.5°C?

(c) The patient’s temperature was the same two times during the period given. What were the two times?

(d) What was the temperature at 1:30 pm? How did you arrive at your answer?

(e) During which periods did the patient’s temperature show an upward trend?

Answer :

(a) At 1 pm the patient’s temperature was \(36.5^o\)C

(b) At 12:00 noon the patient’s temperature was \(38.5^o\)C.

(c) At 1 pm and 2 pm the patient's temperature was \(36.5^o\)C.

(d) At 1:30 pm the temperature was \(36.5^o\)C. We took 1:30 p.m which is the mid value of 1 pm. and 2 pm and proceeded perpendicularly upwards to meet the horizontal line showing \(36.5^o\)C.

(e) The temperature showed upwards trend in the following durations from 9 am to 10 am, 10 am to 11 am and 2pm to 3 pm

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