semana 3

X2+y2-4=0
(x+2)2+(y-2)2
X2+4x+4+y2-2y+2=0
X2+y2+4x-2y=16
Centro =(0,0) R= 4



X2+y2-16=0
(x+4)2+(y-40)2
X2+8x+16+y2-8y+16=0
X2+y2+8x-8y=32
Centro =(0,0) R= 5.2





X2+y24x-2y-1=0
(x-2)2(y-1)2
X2+y2+4x-2y+4+1-1
X2+y2+4x-2y=4
Centro =(-2,-1) R= 2



X2+y2-3=0
(x-0)2(y-0)2
X2+y2=3
X2+y2=3
Centro =(0,0) R= 1.7



X2+y2+6x-8y=18
(x-3)2(y-4)2
X2+y2+6x-8y+9+16=0
X2+y2+6x-8y+25=7
Centro =(3,4) R= 2.41




X2+y2+6x-1=0
(x-3)2(y-0)2
X2+y2+6x+9=0
X2+y2+6x+9=9
Centro =(3,0) R= 3



X2+y2-4y-1=0
(x-0)2(y-2)2
X2+y2-4y+4=0
X2+y2-4y=3
Centro =(0,2) R= 1.3





X2+y2-7=0
(x-0)2(y-)2
X2+y2=7
Centro =(0,0) R= 2.6




X2+y2-8=0
(x-0)2(y-0)2
X2+y2=8
Centro =(0,0) R= 2.8




X2+y2-10=0
(x-0)2(y-0)2
X2+y2=10
Centro =(0,0) R= 3.1