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sakigirl

  • 3 years ago

What conic does the equation y^2-x^2=4 represent?

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  1. DLS
    • 3 years ago
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    Hyperbola.

  2. sakigirl
    • 3 years ago
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    @DLS How do you know?

  3. sakigirl
    • 3 years ago
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    I thought it would have been a circle

  4. DLS
    • 3 years ago
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    \[\LARGE \frac{y^2}{4}-\frac{x^2}{4}=1\]

  5. DLS
    • 3 years ago
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    This is the general form of equation for a hyperbola.. For circle it is,(x-a)^2+(y-a)^2=1

  6. sakigirl
    • 3 years ago
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    So in order to find what it is, you divide the sides by the 4? @DLS

  7. DLS
    • 3 years ago
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    Yes,here.

  8. sakigirl
    • 3 years ago
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    Is that how you find out which conics is which? Simply divide what is whatever the number is to both sides?

  9. sakigirl
    • 3 years ago
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    @DLS

  10. DLS
    • 3 years ago
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    Depends.

  11. DLS
    • 3 years ago
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    You have to observe and have an idea about all the conics.

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