John runs at different speeds as part of his training program.

John runs at different speeds as part of his training program. The graph shows his target heart rate at different times during his workout. On which interval is the target heart rate strictly increasing then strictly decreasing.

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Jessica Ellis

Posted Apr 12, 2016

1 Explanation

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Chris Lele, Magoosh Tutor

Apr 12, 2016 •Comment

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Test 1, Section 4

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