Key learning points

1. A cubic graph has a distinct shape.
2. The roots of a cubic graph are where the graph intersects with the x-axis.
3. The turning points are the local maximum and local minimum points of the graph.

Keywords

• Cubic - A cubic is an equation, graph, or sequence whereby the highest exponent of the variable is 3

• 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