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

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Question 71

The circle C C\,C has the equation x2+y2−4x−6y=48x^2 + y^2 - 4x - 6y = 48x2+y2−4x−6y=48

a.

Find the coordinates of the centre of CCC.

[2]
b.

Find equation of the tangent to the circle at the point (7,9)(7, 9)(7,9).

[4]

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

  1. A Level
  2. /Maths
  3. /1.6 C: Coordinate geometry in the (x, y) plane

Practise AQA A Level Maths 1.6 C: Coordinate geometry in the (x, y) plane with exam-style questions for A Level Maths. 110 questions 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), matched to the AQA A Level Maths (7357) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.

Question bank