Question

Use the image to answer the question.

A graph shows an x-axis representing time in seconds ranging from 0 to 12 in increments of 2. The y-axis represents heartbeats ranging from 0 to 18 in increments of 3. The graph shows a line representing resting heart rate.



What is the average number of heartbeats per second?

(1 point)
Responses

112 beats per second
1 Start Fraction 1 over 2 End Fraction beats per second

23 beat per second
Start Fraction 2 over 3 End Fraction beat per second

2 beats per second
2 beats per second

3 beats per second

Answer 1

To find the average number of heartbeats per second, we would need to know the total number of heartbeats over the total time. However, as I cannot see the image you are referring to, I will explain the process for you to get the answer using the graph data.

1. Identify the total heartbeats represented on the y-axis at the end of the given time (12 seconds).
2. Divide that total number of heartbeats by the total time (12 seconds).

For example, if the graph shows a total of 12 heartbeats at 12 seconds:

\[
\text{Average heartbeats per second} = \frac{\text{Total heartbeats}}{\text{Total time in seconds}} = \frac{12 \text{ heartbeats}}{12 \text{ seconds}} = 1 \text{ heartbeat per second}
\]

Using this method, you can calculate the average heartbeats per second based on the graph you have.