A rock is thrown upward from a bridge into a river below. The function f(t) = 16t² + 38t+ 92 determines the height of the rock above the surface of the water (in feet) in terms of the number of seconds t since the rock was thrown. To help you answer questions c. and d. you may want to graph f. a. What is the bridge's height above the water? feet Preview b. How many seconds after being thrown does the rock hit the water? seconds Preview c. How many seconds after being thrown does the rock reach its maximum height above the water? seconds Preview d. What is the rock's maximum height above the water? feet Preview

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