CENTRO EN EL ORIGEN
- centro(0,0)
- radio 3
X²+Y²=R²
X²+Y²=3²
FUERA DEL ORIGEN
- centro(-4,1)
- radio 2
( X-H)²+(Y-K)²=R²
( X+4)²+(Y-1)²=2²
( X+4)²+(Y-1)²=4
(X)²+2(X)(4)+(4)²+(Y)²+2(Y)(-1)+(-1)²=4
X²+8X+16+Y²-1Y-1=4
X²+Y²+8X-1Y+16-1-4=0
X²+Y²+8X-1Y+11=0
- centro(2,-3)
- radio 4
( X-H)²+(Y-K)²=R²
( X-2)²+(Y+3)²=4²
( X-2)²+(Y+3)²=16
(X)²+2(X)(-2)+(-2)²+(Y)²+2(Y)(3)+(3)²=16
X²-4X-4+Y²+6Y+9=16
X²+Y²-4X+6Y-4+9-16=0
X²+Y²-4X+6Y-11=0





