### Home > CAAC > Chapter 13 > Lesson 13.OF1-S > Problem 7-134

7-134.

Write the equation of each circle graphed below. Homework Help ✎

Recall the general equation of a circle: (*x* − *h*)² + (*y* − *k*)² = *r*² where (*h*, *k*) is the center of the circle and *r* is the radius.

Write in graphing form:

(*x* − 1)^{2} + *y*^{2} = 9