Question

Please helpppp. Find center and radius of the circle with this equation x^2+y^2=9

Answer 1

• center: (0, 0)
• radius: 3

Explanation:

Compare the equation to the standard form for the equation of a circle:

(x -h)² +(y -k)² = r² . . . . center (h, k), radius r

x² + y² = 9

We can see that h = k = 0, and r = √9 = 3.

The center is (0, 0), and the radius is 3.