Respuesta :

Answer: [tex]x^{2} +y^{2}=16[/tex]

Step-by-step explanation:

Standard form for a circle is

[tex](x-h)^{2} +(y-k)^{2} =r^{2}[/tex] where (h,k) is the center

[tex](x-0)^{2} +(y-0)^{2} = 4^{2} \\x^{2} +y^{2}=16[/tex]

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