N: Taster... E
07487_1_...
Q3.
Some students investigated how exercise affects heart rate
The figure below shows their results.
120
110
Heart rate 100
in beats
7 of 16
per minute 90
80
70
Student A
Student B
60
0
2
4
14
16
6 8 10 12
Time in minutes
(a)
What was Student B's resting heart rate?
Resting heart rate =
beats per minute
(1)
(b)
The students started running at 2 minutes.
What evidence for this is in the figure above?
(1)