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1.6 C: Coordinate geometry in the (x, y) plane

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Question 56

The circle $C\,$ has equation $x^2 + y^2 - 6x + 2y - 6 = 0$

Find the coordinates of the centre of $C\,$ and the radius of $C$ .

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$C\,$ crosses the $y$ -axis at the points $A\,$ and $B$ . Find the coordinates of $A\,$ and $B$ , giving your answers in exact form.

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Markscheme

1.6 C: Coordinate geometry in the (x, y) plane Questions

A Level
Maths
1.6 C: Coordinate geometry in the (x, y) plane

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.

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