2.2 - 2015 Q2
A circle C with centre at the point (2, –1) passes through the point A at (4, –5).
(a) Find an equation for the circle C. (3)
(b) Find an equation of the tangent to the circle C at the point A, giving your answer in the form ax + by + c = 0, where a, b and c are integers. (4)
(a) Find an equation for the circle C. (3)
(b) Find an equation of the tangent to the circle C at the point A, giving your answer in the form ax + by + c = 0, where a, b and c are integers. (4)