The Graph of the Function F Shown in the Accompanying

question 55

Multiple Choice

The graph of the function f shown in the accompanying figure gives the elevation of that part of the Boston Marathon course that includes the notorious Heartbreak Hill. Determine the intervals (stretches of the course) where the function f is increasing (the runner is laboring) , where it is constant (the runner is taking a breather) , and where it is decreasing (the runner is coasting) . ​ ​

• A) Decreasing on and , increasing on and , and constant on and
• B) Decreasing on and , increasing on and , and constant on and
• C) Decreasing on and , increasing on and , and constant on and

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Definitions:

Positive Emotions

Feelings that are generally beneficial and enjoyable, such as happiness, joy, and love, which contribute to psychological well-being and quality of life.

Hours of the Day

The divisions of the day into specific, equal segments used for the purpose of timekeeping and activity planning.

Personal Emotions

involve individual feelings that are experienced as a response to stimuli and are inherently subjective and personal.

Openly

In a manner that is not concealed or hidden; freely observable to the public.