Mathematics, 16.04.2020 20:06, puppy10rose

The height of a dolphin jumping in and out of water, in feet,
can be modeled by the following function, where the x-axis
of the graph is the water line:
f(x) = -0.5x4 + 3.5x3 – 7x2 + 4x.
Which function reveals the moments when the dolphin
enters or leaves the water?

Answers: 3

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The height of a dolphin jumping in and out of water, in feet, can be modeled by the following function, where the x-axis of the graph is the water line: f(x) = -0.5x4 + 3.5x3 – 7x2 + 4x. Which function reveals the moments when the dolphin enters or leaves the water?

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The height of a dolphin jumping in and out of water, in feet,
can be modeled by the following function, where the x-axis
of the graph is the water line:
f(x) = -0.5x4 + 3.5x3 – 7x2 + 4x.
Which function reveals the moments when the dolphin
enters or leaves the water?