The slope of the line that passes through the point (8,9) and the center of the circle is `x^(2)+y^(2)-10x-12y+43=0`

Find the centre and radius of the circle x^(2)+y^(2)+10x-12y+9=0

The equation of the line passing through the points of intersection of the circles 3x^(2)+3y^(2)-2x+12y-9=0 and x^(2)+y^(2)+6x+2y-15=0

The equation of the line passing through the point (1,2) and perpendicular to the line x+y+1=0 is

Find the equation of the circle passing through the points of intersection of the circles x^(2)+y^(2)-2x-4y-4=0 and x^(2)+y^(2)-10x-12y+40=0 and whose radius is 4.

Find the equation of the circle which passes through the points (3,-2) and (-2,0) and the center lies on the line 2x-y=3

Find the center and radius of the circle x^2+y^2+8x+10y-8=0 .