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A football is kicked and follows the path of a parabola for 8 seconds until it lands.At which time would the football's height be neither increasing or decreasing? its either 2,4,6,8
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A football is kicked and follows the path of a parabola for 8 seconds until it lands.At which time would the football's height be neither increasing or decreasing?

its either 2,4,6,8

User Rishu S
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since a parabola is a function that is at the same height at two point except one that is in the middle. so the middle value is 4 and would be the max height.
User Peter Cullen
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