Mathematics 9709 · AS & A Level · Coordinate geometry

Coordinate geometry — practice question

The circle’s centre is $(2, 6)$, and its radius is $10$.

(a)[2]

State the equation for the circle.

(b)[3]

Because the circle passes through the point $(8, k)$, Find the two possible values of $k$.

Worked solution & mark scheme

This 5-mark question has a full step-by-step worked solution and mark scheme. One marking point: “$\{(y-6)^2\}+\{(x-2)^2\}=\{100\text{ or }10^2\}$” …