Physics—Distance: The Wave Crasher radio controlled speedboat moves away from a dock, and...

Physics—Distance: The Wave Crasher radio controlled speedboat moves away from a dock, and its distance from the dock is given by the piecewise-defined function

where x represents the number of seconds since the boat was launched, and f(x) represents the boat’s distance from the dock in feet.

(a) Graph f on the closed interval [0, 6].

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(b) Evaluate .

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(c) Evaluate .

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(d) Determine .

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(e) Use a complete sentence to describe the behavior of the boat during the first six seconds after its launch.