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 AQA A Level Maths 1.6 C: Coordinate geometry in the (x, y) plane, covering 1.6.1 Equation of a straight line, 1.6.2 Coordinate geometry of the circle, 1.6.3 Parametric equations of curves (A-level only), and 1.6.4 Parametric equations in modelling (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.