Respuesta :
The equation of a circle
[tex](x-xc)^2+(y-yc)^2=r^2[/tex]
defines a circle centred at (xc,yc) with radius r.
So with (xc,yc)=(0,3), and r=4
the equation becomes
[tex](x-0)^2+(y-3)^2=4^2[/tex]
[tex]x^2+(y-3)^2=16[/tex]
[tex](x-xc)^2+(y-yc)^2=r^2[/tex]
defines a circle centred at (xc,yc) with radius r.
So with (xc,yc)=(0,3), and r=4
the equation becomes
[tex](x-0)^2+(y-3)^2=4^2[/tex]
[tex]x^2+(y-3)^2=16[/tex]