Amaths: Curves and Circles question

• iLoliPOP

  8 Jul 12, 12:38

  Do enlighten me by providing workings... thanks

  1) Find the equation of circle which pass through point (2,1) and (0,-3) and has its centre lying on the line 3X+5y-3=0

  Ans:x^2+y^2-22X+12y+27=0

  2)A idameter AB of a circle x^2+y^2-6X+2Y+5=0 is parallel to the line 2X+Y+5=0. Find the coordinates of A and of B.

  Ans: A(3,4) , B(5,0) 

• wee_ws

  9 Jul 12, 06:01

  Hi,

    Your Q1 looks like Q8 in another post, do have a look at:

    http://sgforums.com/forums/2297/topics/453880

    Hope that helps, have a great week ahead!

  Cheers,
  Wen Shih

• Jocelyntxh

  17 Jul 12, 08:19

  Damn it... I suck at maths~