Heart Rate The table shows the heart rate of an athlete upon stopping a moderate activity. Time (min) 0 1 2 3 | 4 Heart rate (bpm)| 122| 108|| 98 | 92 90 (a) Model the data with H(r) = a(t – h} + k. What is the domain of H? (b) Approximate the athlete's heart rate for t = 1.5 minutes.

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