Give the Focus, Directrix, and Axis for the Parabola $12 \mathrm { ft }$

question 170

Multiple Choice

Give the focus, directrix, and axis for the parabola.
-If an object is thrown upward with an initial velocity of $12 \mathrm { ft }$ per second, then its height is given by $\mathrm { h } = - 12 \mathrm { t } ^ { 2 } + 48 \mathrm { t }$ . What is its maximum height?

• A) \(72 \mathrm { ft }\)
• B) \(48 \mathrm { ft }\)
• C) \(24 \mathrm { ft }\)
• D) \(36 \mathrm { ft }\)

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