Question
In Exercises $53-64,$ complete the square and write the equation in standard form. Then give the center and radius of each circle and graph the equation.$$x^{2}+y^{2}+8 x+4 y+16=0$$
Step 1
The equation is given as $x^{2}+y^{2}+8 x+4 y+16=0$. We can rewrite this equation as $(x^{2}+8x) + (y^{2}+4y) = -16$. Show more…
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