Key learning points

1. A quadratic graph is a parabola.
2. The roots of a quadratic graph are where the graph intersects with the x-axis.
3. The turning point is the maximum or minimum point of the graph.
4. The coordinates of the turning point can be found by completing the square.

Keywords

• Roots - When drawing the graph of an equation, the roots of the equation are where its graph intercepts the x-axis (where y = 0).

• Turning point - The turning point of a graph is a point on the curve where, as x increases, the y values change from decreasing to increasing or vice versa.

Common misconception