Quelpr
3 marksCo-ordinate Geometry

CAPE Pure Mathematics Unit 1 · May/June 2017 · Paper 2 · Question 4(a)(i)

The circle, C₁, with equation x² + y² - 4x + 2y - 2 = 0 and the circle C₂ have a common centre. Given that C₂ passes through the point (−1, -2).

Express the equation of C₂ in the form (x – h)² + (y - k)² = k.

The mark scheme is shown once you've answered.

Practise this question

Other parts of this question

  1. 4(a)(ii)The equation of the line L₁ is x + 3y = 3. Determine whether L₁ is a tangent to the circle, C₁, in a (i) on page 16.[7 marks]
  2. 4(b)(i)Express the vector PQ in the form xi + yj + zk.[2 marks]
  3. 4(b)(ii)Determine the Cartesian equation of the plane which passes through the point Q and is perpendicular to PQ.[6 marks]
  4. 4(c)(i)Show that L₁ and L₂ intersect.[5 marks]
  5. 4(c)(ii)Hence, determine the coordinates of the point of intersection of the two lines.[2 marks]

More practice: the rest of this paper · more Co-ordinate Geometry questions · all CAPE Pure Mathematics Unit 1 past papers