Solve the Problem
-April Shoots an Arrow Upward into the Air

question 138

Multiple Choice

Solve the problem
-April shoots an arrow upward into the air at a speed of 64 feet per second from a platform that is 21 feet high. The height of the arrow is given by the function $h ( t ) = - 16 t ^ { 2 } + 64 t + 21$ , where $t$ is the time is seconds. What is the maximum height of the arrow?

• A) \(85 \mathrm { ft }\)
• B) \(21 \mathrm { ft }\)
• C) \(17 \mathrm { ft }\)
• D) \(64 \mathrm { ft }\)

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