Does the graph represent the heart rate's path as a function of time? Heart Rate
Heartbeats
9 N
-
A
A
2 4 6 8 10
Time (in seconds)
O A. Yes, because for every output there is exactly one input.
OB. Yes, because for every input there is exactly one output.
OC. No, because there are more than one input for the same output.
OD. No, because there are more than one output for the same input.