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.

Linear equations can be shown on a graph. Find out how to create one in this Bitesize KS3 maths video. A quadratic function can be drawn as a parabola on a graph. Find out how to plot the graph in ...

These two paper sheets show drawings of parabolas. One is labeled: 1259 (/) Fig 2. It represents the equation x 2 + 4x + 4 = y. The other is labeled: Sheet 1266 (/) Fig 4. It represnts the equation x ...