One of the equations below is the equation of a circle of radius 6.
Identify this equation.
Tick one box.
(x−4)2+(y+1)2=6(x - 4)^2 + (y + 1)^2 = 6(x−4)2+(y+1)2=6
(x−4)2+(y+1)2=36(x - 4)^2 + (y + 1)^2 = 36(x−4)2+(y+1)2=36
(x−4)2−(y+1)2=36(x - 4)^2 - (y + 1)^2 = 36(x−4)2−(y+1)2=36
(x−4)2+(y+1)2=−36(x - 4)^2 + (y + 1)^2 = -36(x−4)2+(y+1)2=−36
143 exam-style questions on OCR A Level Maths 1.3 Coordinate Geometry in the x-y Plane, covering 1.3.1 Straight lines, 1.3.2 Parallel and perpendicular lines, 1.3.3 Straight line models, 1.3.4 Coordinate geometry of a circle, 1.3.5 Centre and radius by completing the square, 1.3.6 Circle properties, 1.3.7 Parametric equations of curves (A-level only), 1.3.8 Parametric equations in context (A-level only), and 1.3 Coordinate Geometry in the x-y Plane. Each one has a worked solution and a mark scheme showing where the marks go.