Two friends decide to go on a four hour ride on off road vehicles through mountainous terrain the graph represents their elevation in hundreds of feet as a function of time in hours the ride started 2000 feet above sea level so for the purpose of this problem assume the x-axis represents an elevation of 2000 feet find the key features of the graph fine the extrema zeros end behavior increasing and decreasing intervals and positive and negative intervals

Extrema: relative minimum (1.25,-3.25), relative maximums (3.25,10) and (0,0)

Zeros: (0,0), (2,0), and (4,0)

End behavior: As x approaches infinity, the function approaches negative infinity. As x approaches negative infinity, the function approaches negative infinity.

Intervals of increase and decrease: increasing on (-∞, 0) and (1.25, 3.25), decreasing on (0, 1.25) and (3.25, ∞)

Positive and negative intervals: positive on (2, 4), negative on (-∞, 0), (0, 2), and (4, ∞)

plato answer

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