This worksheet allows you to investigate cubic graphs given in the form y = a(x + b)³3 +c.[br]Use the sliders to change the values of a, b and c and note what happens to the shape of the graph, and the position of the point of inflection (the point where the curve twists).[br]How can you work out the y-intercept from the equation?

For a cubic graph given in the form y=a(x+b)³ +c[br]1. How can you tell where the point of inflection of the graph will be?[br]2. How can you determine where the graph will cut the y-axis?