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Mathematics

9th -

10thgrade

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Unit 11 Circles - Equations of Circles

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10 questions

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  • 1. Multiple Choice
    1 minute
    1 pt

    What is the standard equation of a circle?

    (x-k)2 + (y-h)2 = r2

    (x+h)2 + (y+k)2 = r2

    (x-h)2 + (y-k)2 = r2

    (k-x)2 + (h-y)2 = r2

  • 2. Multiple Choice
    1 minute
    1 pt

    What does (h,k) standard for in the standard circle equation?

    (h,k) is the center of the circle

    (h,k) is a point on the circle.

    (h,k) is a point that we guess and find

    (h,k) is the distance of the circle

  • 3. Multiple Choice
    30 seconds
    1 pt
    In the equation (x-3)2+(y-2)2=16, the center of the circle is...
    (3,2)
    (-3, -2)
    (-2, -3)
    (2, 3)
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