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Mitchi35

  • one year ago

Graph the circle with center (-1,2) and diameter 12. Label the center and at least four points on the circle. Write the equation of the circle.

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  1. Mitchi35
    • one year ago
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    I don't understand the diameter 12. I know how to label. I just don't understand what it means to write the equation of the circle. Help please?

  2. Vocaloid
    • one year ago
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    equation of a circle: (x-h)^2 + (y-k)^2 = radius^2 where (h,k) = (-1,2)

  3. Mitchi35
    • one year ago
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    Thank you!

  4. Mitchi35
    • one year ago
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    Oh wait. I still need help with finding the other four points to make the circle. Like how do I do that?

  5. Vocaloid
    • one year ago
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    start plugging in 4 x-values, get 4-matching y values, then label those 4 points

  6. welshfella
    • one year ago
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    or to find the 4 points, since the radius of the circle = 12/2 = 6 you can add (6,0) to the center (-1,2) giving the point (5,2) also add (-6,0) giving (-7,2)

  7. welshfella
    • one year ago
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    and also ad (0 , 6) and (0 , -6)

  8. Mitchi35
    • one year ago
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    Okay.Thanks guys/girls! :)

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