Write an Equation for the Hyperbola $( 3,0 ) , ( - 3,0 )$

question 163

Multiple Choice

Write an equation for the hyperbola.
-vertices at $( 3,0 ) , ( - 3,0 )$ ; foci at $( 9,0 ) , ( - 9,0 )$

• A) \(\frac { x ^ { 2 } } { 81 } - \frac { y ^ { 2 } } { 9 } = 1\)
• B) \(\frac { x ^ { 2 } } { 9 } - \frac { y ^ { 2 } } { 81 } = 1\)
• C) \(\frac { x ^ { 2 } } { 9 } - \frac { y ^ { 2 } } { 72 } = 1\)
• D) \(\frac { x ^ { 2 } } { 72 } - \frac { y ^ { 2 } } { 9 } = 1\)

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