Find the Center and Radius of the Circle $x ^ { 2 } + y ^ { 2 } = 9$

question 116

Multiple Choice

Find the center and radius of the circle.
- $x ^ { 2 } + y ^ { 2 } = 9$

• A) \(( 0,3 ) , r = 9\)
• B) \(( 0,0 ) , \mathrm { r } = 9\)
• C) \(( 3,3 ) , r = 9\)
• D) \(( 0,0 ) , r = 3\)