This worksheet allows you to investigate cubic graphs given in Factorised Form.[br]Use the sliders to change the values of a, b, c and d and note what happens to the shape of the graph, and where it cuts the x and y-axes.

Which parts of the equation tells you the x-intercepts?[br]How can you work out the y-intercept?[br]How can you tell if the curve goes from bottom left to top right or vice versa?