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
3 beats per second
3 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
112 beats per second
1 Start Fraction 1 over 2 End Fraction beats per second
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Since the y-axis represents the number of heartbeats and the x-axis represents time in seconds, the average number of heartbeats per second can be calculated by finding the slope of the resting heart rate line.
From the graph, it looks like the resting heart rate line passes through the points (0, 6) and (12, 6).
To find the slope, we use the formula: slope = (change in y)/(change in x)
In this case, the change in y is 0 (since the y-coordinate doesn't change) and the change in x is 12 (since the x-coordinate ranges from 0 to 12).
So the slope is 0/12 = 0.
Therefore, the average number of heartbeats per second is 0 beats per second.
A B C OR D
Sorry for the confusion. Based on the information given, the average number of heartbeats per second cannot be determined solely from the graph. The graph only shows the resting heart rate line, but it does not provide information about the number of heartbeats during other time intervals. Therefore, the answer cannot be determined from the image provided.
To answer this question, we need to analyze the information given in the image and calculate the average number of heartbeats per second.
First, let's look at the graph. The x-axis represents time in seconds, and the y-axis represents heartbeats. The graph shows a line representing resting heart rate.
To find the average number of heartbeats per second, we need to calculate the total number of heartbeats over the given time period and divide it by the total time.
Looking at the graph, we can see that the resting heart rate line is horizontal, indicating that the heart rate remains constant throughout the given time period. Additionally, the graph shows that the resting heart rate is 3 beats every 2 seconds.
Therefore, to calculate the average number of heartbeats per second, we can use the formula:
Average Heartbeats per Second = Total Heartbeats / Total Time
Since the resting heart rate is 3 beats every 2 seconds, we can calculate the total number of heartbeats in the given time period:
Total Heartbeats = 3 beats/2 seconds × 6 intervals (from 0 to 12 seconds)
Total Heartbeats = 9 beats per interval × 6 intervals
Total Heartbeats = 54 beats
Now, let's calculate the total time:
Total Time = 12 seconds - 0 seconds
Total Time = 12 seconds
Finally, we can calculate the average number of heartbeats per second:
Average Heartbeats per Second = Total Heartbeats / Total Time
Average Heartbeats per Second = 54 beats / 12 seconds
Average Heartbeats per Second = 4.5 beats per second
Therefore, the average number of heartbeats per second, based on the given graph, is 4.5 beats per second.