Question
Find the equation of the circle with center $(2,4) :$ $$\begin{array}{l}{\text { (a) with radius } r=3 \text { . }} \\ {\text { (b) that passes through }(1,-1) \text { . }}\end{array}$$
Step 1
Step 1: The general equation of a circle is given by $(x-h)^2 + (y-k)^2 = r^2$, where $(h,k)$ is the center of the circle and $r$ is the radius. Show more…
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Key Concepts
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