Graphs of Proportional Relationships Quick Check

2 of 52 of 5 Items

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

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
3 beats per second

112 beats per second

1 answer

The correct answer is 1/3 beat per second.
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