A function can be illustrated on a graph – points are plotted as coordinates and joined by either a straight line or a smooth curve. A linear function has an equation of the form y = m x + c.

Graphs of quadratic functions can be used to solve equations. Example Draw the graph of y = 2 x 2 + 2 x 4 for values of –3 to 2. Use the graph to solve the equation y = 2 x 2 + 2 x 4. Solution ...

An Example of the Transactional Type Functions in a Business. Strategic business functions, such as accounting, marketing and product development, are dedicated to planning, strategy and analysis.