Question

the graph to the right shows the heart rate of a person watching a short romantic film, where x represents time in minutes, and y represents heart rate in beats per minute. answer the following questions.

(f) use the graph to estimate the persons maximum heart rate during the 15 minute film.

69 bpm

after how many minutes did this maximum heart rate occur?

3 minute(s)

(g) use the graph to estimate the persons minimum heart rate during the 15 minute film.

50 bpm

after how many minutes did this minimum heart rate occur?

minute(s)

Explanation:

Find the maximum heart rate

Using the Graph Interpretation and Maximum Value of Quadratic knowledge points

$$
LATEXBLOCK0
$$

Find the time of maximum heart rate

Using the Graph Interpretation knowledge point

$$
LATEXBLOCK1
$$

Find the minimum heart rate

Using the Graph Interpretation and Minimum Value Estimation knowledge points

$$
LATEXBLOCK2
$$

Find the time of minimum heart rate

Using the Graph Interpretation knowledge point

$$
LATEXBLOCK3
$$

Answer:

Question 1

Use the graph to estimate the person's maximum heart rate during the 15 minute film.
<blank>69</blank> bpm

Question 2

After how many minutes did this maximum heart rate occur?
<blank>3</blank> minute(s)

Question 3

Use the graph to estimate the person's minimum heart rate during the 15 minute film.
<blank>49</blank> bpm

Question 4

After how many minutes did this minimum heart rate occur?
<blank>15</blank> minute(s)