MATHEMATICS · Single correct · IB Diploma Programme · Mathematics: Analysis and Approaches · Functions · Functions
Problem
For the circle x2+y2−4x+6y−12=0, the value of x2+y2−4x+6y−12 at the point Q(1,−1) is −4. What does this signify about the position of Q relative to the circle?
(a) Q lies outside the circle
(b) Q lies on the circle
(c) Q lies inside the circle
(d) The information is insufficient to decide