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Equations of a Circle

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Write the standard for of the equation of the circle that passes through the points at (0,8),(8,0),and (16,8). Then identify the center and radius of the circle.

I have r=8, center=(8,8). What now?

  • Equations of a Circle -

    Just state the equation...

    (x-8)^2 + (y-8)^2= 64

    mentally sub in each of the 3 points.
    All satisfy the equation.

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