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.

Not a lot of thought goes into the average spreadsheet. Yet, increasingly, spreadsheets are becoming an essential tool for data teams. Entrepreneur David Kircos knows this well; he previously worked ...

Google's latest animated Doodle celebrates the quadratic equation, transforming its homepage into an interactive classroom.

Save guides, add subjects and pick up where you left off with your BBC account. Quadratic graph lines are U- or Ո-shaped, which is called a parabola. A linear graph can be drawn using only three ...