Investigate the family of graphs given by the equation x^3+y^3=3axy for different values of the constant a.
Sketch the members of the family of graphs given by y = a^3/(x^2+a^2) for a=1, 2 and 3.
Make a catalogue of curves with various properties.
Can you fit a cubic equation to this graph?
What is the quickest route across a ploughed field when your speed around the edge is greater?
Can you construct a cubic equation with a certain distance between its turning points?
Can you sketch these difficult curves, which have uses in mathematical modelling?
Find the relationship between the locations of points of inflection, maxima and minima of functions.
Consider these analogies for helping to understand key concepts in calculus.
How many eggs should a bird lay to maximise the number of chicks that will hatch? An introduction to optimisation.
A point moves on a line segment. A function depends on the position of the point. Where do you expect the point to be for a minimum of this function to occur.