Question
65–72 ? Show that the equation represents a circle, and find the center and radius of the circle.$$x^{2}+y^{2}+2 x+y+1=0$$
Step 1
Step 1: First, we need to rearrange the given equation to make it look like the standard equation of a circle, which is $(x-h)^2 + (y-k)^2 = r^2$, where $(h,k)$ is the center of the circle and $r$ is the radius. Show more…
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