Find the equation of the circle shown. Indeed any vertical line drawn through the interior of the circle meets the circle in two points every x has two. A circle of radius 1 centered at the origin consists of all points xy for which x2 y2 1.
XA2 yB2 1.
So this is a vertical line. 0 O 0. Hence the tangent line has the slope. X2 y2 a2 For the given condition the equation of a circle is given as x2 y2 8 2.