Question a38c0183

Geometry and Trigonometry - Circles

  • The center of the circle is the point (negative 2 comma 0).
  • Clockwise from top, the circle passes through the following points:
    • (negative 2 comma 3)
    • (1 comma 0)
    • (negative 2 comma negative 3)
    • (negative 5 comma 0)

Circle A (shown) is defined by the equation x+22+y2=9. Circle B (not shown) is the result of shifting circle A down 6 units and increasing the radius so that the radius of circle B is 2 times the radius of circle A. Which equation defines circle B?

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