Skip to content
MathsGenie logo
Open app

Course home

  1. A Level
  3. Maths Edexcel
  5. Question bank

Circles

EasyMediumHard
12345678910111213141516171819202122
Question 10

The circle C C\,C has the equation x2+y2−8x+6y+5=0x^2 + y^2 - 8x + 6y + 5 = 0x2+y2−8x+6y+5=0

a.

Find (i) the coordinates of the centre of C C\,C and (ii) the exact radius of CCC.

[3]
b.

The line with equation y=ky = ky=k where k k\,k is a constant, is a tangent to CCC. Find the possible values of kkk.

[2]

Circles Questions

  1. A Level
  2. /Maths
  3. /Circles

Practise Edexcel A Level Maths Circles with exam-style questions for A Level Maths. 28 questions covering 6.1 Midpoints and Perpendicular Bisectors, 6.2 Equation of a Circle, 6.3 Intersections of Straight Lines and Circles, 6.4 Use Tangent and Chord Properties, and 6.5 Circles and Triangles, matched to the Edexcel A Level Maths (9MA0) 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