Quadratic graph lines are U- or Ո-shaped, which is called a parabola. A linear graph can be drawn using only three points. A quadratic graph is a curve, so more points are plotted to support accuracy.

Look at the National 4 factorising section before continuing. When a question asks you to 'solve' a quadratic equation, this means that you are to find the roots of the quadratic. In other words, ...

Mubasshir Murshed, fondly known as "Mub" by his friends, is a 17-year-old mathematics genius who has been given the rare honour, for someone of his age, of being published in a national academic ...