Question

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 patient's temperature show an upward trend?

Answer 1

(a) At $1$ $p.m$. , the patient's temperature was $36.5°$ $C$.

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(b) The patient's temperature was $38.5°$ $C$ at $12$ noon.

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(c) The patient's temperature was same at $1$ $p.m$. and $2$ $p.m$.

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(d) The graph between the times $1$ $p.m$. 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 $36.5°$ $C$.

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(e) During the following periods, the patient's temperature showed an upward trend.
$9 \;a.m. \;to \;10\; a.m.,\; 10 \;a.m.\; to \;11 \;a.m.,\; 2 \;p.m. \;to \;3 \;p.m.\;$