Solve the Problem $t$ Seconds Is Given by the Equation $h ( t ) = - 16 t ^ { 2 } + 16 t + 242$

question 459

Multiple Choice

Solve the problem.
-A coin is tossed upward from a balcony 242 feet high with an initial velocity of 16 feet per second, then its height after $t$ seconds is given by the equation $h ( t ) = - 16 t ^ { 2 } + 16 t + 242$ . During what interval of time will the coin be at a height of at least $50 \mathrm { ft }$ ?

• A) \(4 \leq t \leq 8\)
• B) \(3 \leq t \leq 4\)
• C) \(0 \leq t \leq 1\)
• D) \(0 \leq t \leq 4\)

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