Find the equation of the chord of the circle `x^2+y^2=a^2` passing through the point (2, 3) farthest from the center.

Find the equation of chord of the circle x^(2)+y^(2)-2x-4y-4=0 passing through the point (2,3) which has shortest length.

Find the equation of the chord of the circle x^(2)+y^(2)=9 whose middle point is (1,-2)

find equation of the line parallel to the line 3x-4y+2=0 and passing through the point (-2,3)

Find the equation of the chord of the circle x^2 + y^2 + 6x+8y+9=0 , whose middle point is (-2, -3) .

Find the equation of that chord of the circle x^(2)+y^(2)=15, which is bisected at the point (3,2)

Find the equation of a line perpendicular to x-2y+3=0 and passing through the point (3,-2) .

Find the equation of the circle passing through the point (2, 4) and centre at the point of intersection of the lines x-y=4 and 2x+3y=-7 .

Find the equation of the tangent to the circle x^2 + y^2 = 9 , which passes through the point on the circle where x = 2 and y is positive.

Find the equation of the circle concentric with the circle x^2 +y^2 - 4x - 6y-9=0 and passing through the point (-4, -5)