A function can be illustrated on a graph - points are plotted as coordinates and joined by either a straight line or a smooth curve. ... Example. Draw the graph of \(y = x^{3}\).

Graphs of quadratic functions can be used to solve equations. Example. Draw the graph of \(y = 2x^{2} + 2x – 4\) for values of –3 to 2. Use the graph to solve the equation \ ...