Find the equation of the y-axis.

Find the equation of the straight line which makes and angle 60^(@) with the positive direction of x-axis and the y-intercept cut of by it is 3.

Find the equation of the radical axis of the circles x^(2)+y^(2)-4x+6y-7=0,4(x^(2)+y^(2))+8x+12y-9=0

Find the equation of the radical axis of the following circles. x^2 + y^2 + 2x + 4y + 1 = 0. x^2+y^2 + 4x + y = 0

Find the equation of the radical axis of the following circles. x^2 + y^2 + 4x + 6y -7 = 0. 4(x^2 + y^2) + 8x + 12y - 9 = 0.

Find the equation of the radical axis of the following circles x^(2)+y^(2)-3x-4y+5=0,3(x^(2)+y^(2))-7x+8y-11=0

Find the equation of the radical axis of the following circles. x^2+y^2-2x-4y-1=0 x^2+y^2-4x-6y+5=0

Find the equation of the radical axis of the following circles. x^2 + y^2 -2x - 4y -1 = 0. x^2 + y^2 - 4x - 6y + 5 = 0 .