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ehamer Group Title

x2 + y2 + 10y + 20 = 0

  • one year ago
  • one year ago

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  1. zzr0ck3r Group Title
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    whats the question?

    • one year ago
  2. ehamer Group Title
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    Show that the equation represents a circle by rewriting it in standard form, and find the center and radius of the circle.

    • one year ago
  3. Azteck Group Title
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    complete the square for y.

    • one year ago
  4. matricked Group Title
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    x^2 +(y+5)^2= 5

    • one year ago
  5. Azteck Group Title
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    good work matricked, no working whatsoever to show how you got that.

    • one year ago
  6. matricked Group Title
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    centre (0,-5) and radius sqrt(5)

    • one year ago
  7. manishsatywali Group Title
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    |dw:1359616706864:dw|

    • one year ago
  8. ehamer Group Title
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    THanks! makes sense now!

    • one year ago
  9. manishsatywali Group Title
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    compare this with equation of circle (x-a)^2 + (y-b)^2 = r where a,b is the centre and r is the radius

    • one year ago
  10. manishsatywali Group Title
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    so a = 0 y = -5 r=\[\sqrt{5}\]

    • one year ago
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