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LoveToDance22

  • 3 years ago

What is the equation of this circle?

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  1. LoveToDance22
    • 3 years ago
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  2. LogicalApple
    • 3 years ago
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    Can you identify its center based on the image ?

  3. LoveToDance22
    • 3 years ago
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    (0,1) ?

  4. RaphaelFilgueiras
    • 3 years ago
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    |dw:1356930702438:dw|

  5. LogicalApple
    • 3 years ago
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    And can you identify the radius of the circle ?

  6. LoveToDance22
    • 3 years ago
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    is it 2?

  7. LogicalApple
    • 3 years ago
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    It looks like it. And @RaphaelFilgueiras provided the general equation of a circle.

  8. LoveToDance22
    • 3 years ago
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    Is the equation x^2 + (y + 1)^2 = 2 ?

  9. LogicalApple
    • 3 years ago
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    Close --but remember that in the form: (x - x0)^2 + (y - y0)^2, the point (x0, -y0) is the center. So you would reverse the sign of (y + 1) to (y - 1)

  10. LoveToDance22
    • 3 years ago
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    Kk, thanks!

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