Bradley Johnston
09/01/2024 · Middle School
The equation of a circle is given in standard form. Complete parts a through c to follow the step by step process to sketch the graph of the circle. \( (x-3)^{2}+(y+5)^{2}=16 \) a) Determine the center and radius of the circle. The center of the circle is (Type an ordered pair.)
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Step-by-step Solution
Given the equation of the circle in standard form: \((x-3)^{2}+(y+5)^{2}=16\).
a) To determine the center and radius of the circle, we compare the given equation with the standard form of the equation of a circle: \((x-h)^{2}+(y-k)^{2}=r^{2}\), where \((h,k)\) is the center of the circle and \(r\) is the radius.
Comparing the given equation with the standard form, we can see that:
- \(h = 3\)
- \(k = -5\)
- \(r = \sqrt{16} = 4\)
Therefore, the center of the circle is at the point \((3, -5)\) and the radius of the circle is 4 units.
Quick Answer
The center of the circle is at \((3, -5)\) and the radius is 4 units.
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