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cdawg111

  • 3 years ago

how do you find the center and the radius of a cirlce..with (x+3)^2+y^2=16

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  1. ktnguyen
    • 3 years ago
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    |dw:1354663805261:dw|

  2. cdawg111
    • 3 years ago
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    so r would be 4?

  3. cwrw238
    • 3 years ago
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    right

  4. cdawg111
    • 3 years ago
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    how do i get the center

  5. cwrw238
    • 3 years ago
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    compare x + 3 with x - h (h is x coordinate of the center) what does that make x cood of centrer?

  6. cwrw238
    • 3 years ago
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    do u follow me?

  7. cdawg111
    • 3 years ago
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    no because i dont have a center

  8. cwrw238
    • 3 years ago
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    center is h comparing the 2 brackets -h = 3 so what does that make h?

  9. cdawg111
    • 3 years ago
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    -3

  10. cwrw238
    • 3 years ago
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    right now in the case of y coordinate we have y^2 so the y cordinate is 0 so center is (-3, 0)

  11. cdawg111
    • 3 years ago
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    and radius is 4 correct

  12. cwrw238
    • 3 years ago
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    yea

  13. cdawg111
    • 3 years ago
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    thanks i got it

  14. cwrw238
    • 3 years ago
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    yw

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