Write an Equation for the Hyperbola $x$ -Intercepts $( \pm 8,0 )$

question 172

Multiple Choice

Write an equation for the hyperbola.
- $x$ -intercepts $( \pm 8,0 )$ , foci at $( - \sqrt { 89 } , 0 ) , ( \sqrt { 89 } , 0 )$

• A) \(\frac { x ^ { 2 } } { 64 } - \frac { y ^ { 2 } } { 25 } = 1\)
• B) \(\frac { x ^ { 2 } } { 89 } - \frac { y ^ { 2 } } { 64 } = 1\)
• C) \(\frac { x ^ { 2 } } { 64 } - \frac { y ^ { 2 } } { 89 } = 1\)
• D) \(\frac { x ^ { 2 } } { 25 } - \frac { y ^ { 2 } } { 64 } = 1\)

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A calculation that measures the relative profitability of an investment, by dividing the present value of future cash flows by the initial investment cost.

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Profitability Index

A financial tool used to determine the relative profitability of an investment, calculated as the present value of future cash flows divided by the initial investment cost.