Explanation
Shifted hyperbola (horizontal):
(x − h)²/a² − (y − k)²/b² = 1
Shifted hyperbola (vertical):
(y − k)²/a² − (x − h)²/b² = 1
Where:
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Center = (h, k)
Asymptotes:
y − k = ±(b/a)(x − h)
Shifting moves the graph but does not change its shape.
Quiz
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What is the center of (x − 2)²/9 − (y + 1)²/4 = 1?
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What do h and k represent?
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Does shifting change the asymptotes’ slopes?
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What form opens left/right?
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Are asymptotes important for graphing?
Answer Key
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(2, −1)
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Center coordinates
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No
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(x − h)²/a² − (y − k)²/b² = 1
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Yes