Jawabanmu

2014-01-11T11:24:22+07:00
(x-a)² + (y-b)² = (x1-a)² + (y1-b)²
(x - (-3))² + (y - (-4))² = (1 - (-3))² + (2 - (-4))²
( x + 3 )² + ( y + 4)² = 16 + 36
 ( x + 3 )² + ( y + 4)²  = 52

menurutku itu pgsnya ^^ semoga membantu