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

question 47

Multiple Choice

Give the focus, directrix, and axis for the parabola.
-A projectile is thrown upward so that its distance above the ground after $\mathrm { t }$ seconds is $\mathrm { h } = - 15 \mathrm { t } ^ { 2 } + 480 \mathrm { t }$ . What is its maximum height?

• A) \(3840 \mathrm { ft }\)
• B) \(5760 \mathrm { ft }\)
• C) \(2880 \mathrm { ft }\)
• D) \(1920 \mathrm { ft }\)

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Definitions:

Controlling

In management, refers to the process of monitoring performance, comparing it with goals, and taking corrective action as needed.

Finance

The management of large amounts of money, especially by governments or large companies.