Find the Center (H, K) and Radius R of the Circle

question 33

Multiple Choice

Find the center (h, k) and radius r of the circle with the given equation.
- $$x ^ { 2 } + y ^ { 2 } + 18 x - 8 y + 97 = 16$$

• A) \(( \mathrm { h } , \mathrm { k } ) = ( 9 , - 4 ) ; \mathrm { r } = 16\)
• B) \(( \mathrm { h } , \mathrm { k } ) = ( 4 , - 9 ) ; \mathrm { r } = 4\)
• C) \(( h , k ) = ( - 4,9 ) ; r = 16\)
• D) \(( \mathrm { h } , \mathrm { k } ) = ( - 9,4 ) ; \mathrm { r } = 4\)

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