Question
Question Find the center and radius of the circle represented by the equation below. \[ (x-11)^{2}+(y+4)^{2}=144 \] Answer Attempt 2 out of 2 Center: Radius:
Ask by Vaughn Peterson. in the United States
Jan 23,2025
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Tutor-Verified Answer
Answer
Center: (11, -4), Radius: 12
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Bonus Knowledge
The center of the circle is found by examining the equation's format, which is \((x-h)^{2} + (y-k)^{2} = r^{2}\). Here, \(h\) and \(k\) represent the x and y coordinates of the center, respectively. For your equation, \(h\) is 11 and \(k\) is -4, so the center is at the point (11, -4). To find the radius, take the square root of the right side of the equation. Since \(r^{2} = 144\), the radius \(r\) is \(\sqrt{144} = 12\). Therefore, the circle has a radius of 12 units.