<p><span>For courses in Precalculus</span> </p><p><b><span>TheRule of Four: A Balanced Approach <o></o:p></span></b></p><p><b><i><span>Precalculus:Graphical, Numerical, Algebraic</span></i></b><span>provides a balanced approach to problem solving and a consistent transitionfrom Precalculus to Calculus. A principal feature of this text is the balanceamong the algebraic, numerical, graphical, and verbal methods of representingproblems: the rule of 4. This approach reinforces the idea that to understand aproblem fully, students need to understand it algebraically as well asg