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.

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 ...