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Mathematics 8 Online
OpenStudy (anonymous):

The function f(x) = -x^2 - 5x + 50 shows the relationship between the vertical distance of a diver from a pool's surface f(x), in feet, and the horizontal distance x, in feet, of a diver from the diving board. What is a zero of f(x) and what does it represent?

OpenStudy (mertsj):

replace f(x) with 0 and solve the equation to find a zero of f(x)

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