class 11

Math

Co-ordinate Geometry

Circles

Consider a family of circles which are passing through the point $(−1,1)$and are tangent to x-axis. If (h, k) are the co-ordinates of the centre of the circles, then the set of values of k is given by the interval

- $0<k<$
- $k≥$
\displaystyle\-lt={k}\leq - $k≤$