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Can anyone help me? The directions are:
Choose the correct conic section to fit each equation. Is it a Circle, Ellipse, Parabola, or Hyperbola?
1) x^2 + y^2 = 16

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Luanaid
[tex]Genereal\ formula\ for\ circle:\\(x-a)^2+(y-b)2=r^2\\Center\ of\ circle:\ S(a,b)\\r-radius\\\\x^2+y^2=4^2\\It's\ equation\ of\ circle,\ which\ has\ S(0,0)\ and\ radius\ 4.[/tex]

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