1.3 Coordinate Geometry in the x-y Plane

The circle $C\,$ has the equation $x^2 + y^2 - 6x - 12y = 0$ . The line $l\,$ is a tangent to $C\,$ at the point $(8, 3)$ .

Find the equation of $l\,$ in the form $a x + b y + c = 0$ .

[5]

The circle $C\,$ has the equation $x^2 + y^2 - 6x - 12y = 0$ . The line $l\,$ is a tangent to $C\,$ at the point $(8, 3)$ .

Find the equation of $l\,$ in the form $a x + b y + c = 0$ .

[5]

1.3 Coordinate Geometry in the x-y Plane Questions