The circle C C\,C has equation x2+y2−6x+2y−6=0x^2 + y^2 - 6x + 2y - 6 = 0x2+y2−6x+2y−6=0
Find the coordinates of the centre of C C\,C and the radius of CCC.
C C\,C crosses the yyy-axis at the points A A\,A and BBB. Find the coordinates of A A\,A and BBB, giving your answers in exact form.
76 exam-style questions on WJEC A Level Maths 1.3 Coordinate geometry in the (x, y) plane, covering 1.3.1 Coordinate geometry in the (x, y) plane, 1.3.2 Coordinate geometry in the (x, y) plane, 1.3.3 Coordinate geometry in the (x, y) plane, and 1.3.4 Coordinate geometry in the (x, y) plane. Each one has a worked solution and a mark scheme showing where the marks go.