Mathematics Test—Calculator - College Board

Over the interval from 0 to 40 minutes, the line graph moves upward and to the right from 65 beats per minute at 0 minute, until reaching 80 beats at 9 minutes. It then moves horizontally, staying at 80 beats per minute until 32 minutes. The graph then moves downward and to the right, ending at 75 beats per minute at 40 minutes. ................
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