Find an Equation of the Ellipse with Vertices $( \pm 9,0 )$

question 540

Multiple Choice

Find an equation of the ellipse with vertices $( \pm 9,0 )$ and eccentricity $e = \frac { 3 } { 9 }$ .

• A) \(\frac { x ^ { 2 } } { 72 } - \frac { y ^ { 2 } } { 81 } = 1\)
• B) \(\frac { x ^ { 2 } } { 81 } + \frac { y ^ { 2 } } { 72 } = 1\)
• C) \(\frac { x ^ { 2 } } { 81 } - \frac { y ^ { 2 } } { 72 } = 1\)
• D) \(\frac { x ^ { 2 } } { 72 } + \frac { y ^ { 2 } } { 81 } = 1\)
• E) \(\frac { x ^ { 2 } } { 72 } + \frac { y ^ { 2 } } { 81 } = 1\).

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Present Value

The current worth of a future sum of money or stream of cash flows given a specified rate of return, used to assess the attractiveness of investments or projects.

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Interest calculated on the initial principal, which also includes all of the accumulated interest of previous periods of a deposit or loan.

Time Periods

Specific durations of time used for accounting purposes, such as fiscal quarters or years.

Discounted

The process of determining the present value of a future amount by applying a discount rate.