Elementary Algebra : Graphs and Authentic Applications (2 ed)

Using authentic data to make math meaningful to students, Jay Lehmann's algebra series uses a curve-fitting approach to model compelling, real-world situations, while answering the perennial question "But what is this good for?" Beginning with interesting data sets, students are asked to find models and derive equations to fit a scenario, helping them to understand functions graphically, numerically, and symbolically.

Updated exercises, labs, and graphs deepen students' understanding of core concepts and keeps them motivated to learn. KEY TOPICS: Introduction to Modeling; Operations and Expressions; Using Slope to Graph Linear Equations; Simplifying Expressions and Solving Equations; Linear Equations in Two Variables; Systems of Linear Equations; Polynomials; Factoring Polynomials and Solving Polynomial Equations; Solving Quadratic Equations; Rational Expressions and Equations; More Radical Expressions and Equations; Using a TI-83 or TI-84 Graphing Calculator MARKET: For all readers interested in algebra.