Questions:

  1. Using the graph in the interactive application, what is the age estimate of a woman who has a target heart rate of 112? Next, use the formula 0.65(220 – A) to estimate. Check your work by entering the heart rate into the interactive application. Did all of the methods give you the same answer? Explain your answer.

    Answer

  2. The line on the graph covers the age range from 20 years to 70 years. Do you feel it is appropriate to use this graph for estimating ages of women younger than 20 years? Explain your answer.

    Answer

  3. Using the graph, find the difference in target heart rate for a 35-year old female and her 60-year old mother. Use the algebraic expression to check your answer.

    Answer

  4. The target heart rate for Sue is found to be 125. Her mother’s target heart rate is 112, and her grandmother’s rate is 100. What do you estimate the age of each female to be?

    Answer

Go To: Instructions