Question

find the equation of the circle with centre (-1,1) and radius = root of 2, in the form x^2 + y^2 + ax + by + c = 0

Answer 1

can you write the equation in (x-h)^2+(y-k)^2=r^2 form?

Answer 2

if you can do this, all that is left to be done is expand and subtract r^2 from both sides

Answer 3

ok lemme try that..wil let u no in a jiffy..thankya! ;)

Answer 4

omg got the answer! thanku! i cant belive i didnt see it b4 though..simple enough..thanx again! :)

Answer 5

yw