Find the centre of the circle x² + y² + 4x − 10y + 13 = 0.

Question

G1 Physics · Accepted Answer

For x²+y²+2gx+2fy+c=0, centre=(−g,−f). Here 2g=4⇒g=2 and 2f=−10⇒f=−5. Centre=(−2,5).