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7-134.
  1. Write the equation of each circle graphed below. Homework Help ✎

    1. graph

    2. graph

Recall the general equation of a circle: (xh)² + (yk)² = r² where (h, k) is the center of the circle and r is the radius.

Write in graphing form:
(x − 1)2 + y2 = 9