The quadratic formula, an example. In general the supply of a commodity increases with price and the demand decreases. The market for the commodity is in equilibrium when supply equals demand. In this ...

Worked examples The graph below has a turning point (3, -2). Write down the nature of the turning point and the equation of the axis of symmetry.

Practise sketching quadratic graphs by finding out where the graph crosses each axis. This worksheet contains simple examples using factorising. It also includes the line of symmetry and locating the ...