The circle C C\,C has equation
x2+y2−8x−10y+k=0x^2 + y^2 - 8x - 10y + k = 0x2+y2−8x−10y+k=0
where k k\,k is a constant.
Given that C C\,C lies entirely in the first quadrant, find the range of possible values of kkk.
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Markscheme
1.6.2 Coordinate geometry of the circle Questions
60 exam-style questions on AQA A Level Maths 1.6.2 Coordinate geometry of the circle. Each one has a worked solution and a mark scheme showing where the marks go.