geometry

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Ryan’s teacher asked him to graph circle E with equation (x – 5)2 + y2 = 25. Below is the graph he submitted.

Circle E that contains points 30, 0; 5, negative 25; negative 20, 0; 5, 25.

What, if anything, did Ryan do wrong when graphing this equation?

  • geometry -

    His circle satisfies

    (x-5)^2 + y^2 = 25^2

    not just 25.

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