Find the Center and the Radius of the Circle $$( x + 4 ) ^ { 2 } + ( y - 9 ) ^ { 2 } = 81$$

question 78

Multiple Choice

Find the center and the radius of the circle.
- $$( x + 4 ) ^ { 2 } + ( y - 9 ) ^ { 2 } = 81$$

• A) \(( - 4,9 ) , \mathrm { r } = 9\)
• B) \(( 9 , - 4 ) , \mathrm { r } = 9\)
• C) \(( 4 , - 9 ) , \mathrm { r } = 81\)
• D) \(( - 9,4 ) , \mathrm { r } = 81\) Graph the equation and state its domain and range. Use interval notation

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