the graph represents a persons heart rate in beats per minute during 30 minutes of exercise. which statement…
the graph represents a persons heart rate in beats per minute during 30 minutes of exercise. which statement best describes the relationship between heart rate and time during exercise? the heart rate increases for 6 minutes, remains constant for 19 minutes, and then gradually increases for 5 minutes. the heart rate decreases for 6 minutes, remains constant for 19 minutes, and then gradually increases for 5 minutes. the heart rate increases for 6 minutes, remains constant for 19 minutes, and then gradually decreases for 5 minutes. the heart rate remains constant for 6 minutes, increases for 19 minutes, and then gradually decreases for 5 minutes.
Answer
Explanation:
Step1: Analyze the first - part of the graph
From (t = 0) to (t=6) minutes, the heart - rate line is rising, which means the heart rate is increasing.
Step2: Analyze the middle part of the graph
From (t = 6) to (t = 6 + 19=25) minutes, the heart - rate line is horizontal, which means the heart rate remains constant.
Step3: Analyze the last part of the graph
From (t = 25) to (t = 30) minutes ((30-25 = 5) minutes), the heart - rate line is falling, which means the heart rate is gradually decreasing.
Answer:
The heart rate increases for 6 minutes, remains constant for 19 minutes, and then gradually decreases for 5 minutes.