There are three ways a line and a circle can be associated, ie the line cuts the circle at two distinct points, the line is a tangent to the circle or the line misses the circle. To work out which ...

Maths teacher Daniel Eglin compares the exams and the pressure they put on students sitting GCSEs and IGCSEs Regarding the recent letters comparing the difficulty of GCSEs and IGCSEs, I believe facts ...

Using high school algebra and geometry, and knowing just one rational point on a circle or elliptic curve, we can locate infinitely many others. You’re sitting at the end of a long conference table, ...