Respuesta :

X^2+Y^2=r^2

generally, it would be (x-h)^2+(y-k)^2=r^2, h and k being the center point (h,k) but since these values are zero, you can get rid of them.

Hopefully this helped!
srubymiller

Answer:

r2=x2+y2

Step-by-step explanation:


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good job