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Write the Word or Phrase That Best Completes Each Statement F′(−c,0)\mathrm { F } ^ { \prime } ( - \mathrm { c } , 0 )

Question 24

Multiple Choice

Write the word or phrase that best completes each statement or answers the question.
-It can be shown that a hyperbola with center at the origin, foci at F′(−c,0) \mathrm { F } ^ { \prime } ( - \mathrm { c } , 0 ) and F(c,0) \mathrm { F } ( \mathrm { c } , 0 ) , and equation d(P,F′) −d(P,F) =2ad \left( P , F ^ { \prime } \right) - d ( P , F ) = 2 a has equation x2a2−y2b2=1\frac { x ^ { 2 } } { a ^ { 2 } } - \frac { y ^ { 2 } } { b ^ { 2 } } = 1 . Use this result to find an equation of a hyperbola with center at the origin, foci at (−6,0) ( - 6,0 ) and (6,0) ( 6,0 ) , and absolute value of the distances from any point of the hyperbola to the two foci equal to 6 .


A) x2−y2=6x ^ { 2 } - y ^ { 2 } = 6
B) x29−y227=1\frac { x ^ { 2 } } { 9 } - \frac { y ^ { 2 } } { 27 } = 1
C) x236−y245=1\frac { x ^ { 2 } } { 36 } - \frac { y ^ { 2 } } { 45 } = 1
D) x236−y26=1\frac { x ^ { 2 } } { 36 } - \frac { y ^ { 2 } } { 6 } = 1

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