Precalculus: Functions and Graphs - Tapa dura

The Eighth Edition of this well respected text - part of Swokowski/Cole series of mathematics texts - features updated discussions to enable students to more easily understand the mathematical concepts; new exercises that require students to estimate, approximate, interpret a result, write a summary, create a model, explore, or find a generalization; and more examples and exercises that use graphing calculators. These changes have been incorporated without sacrificing the mathematical soundness that has been paramount to the success of this text and series.