Technology

Precalculus: A Graphing Approach uses the generic term "graphing utility" to refer to any of the various graphing calculators or computer software packages that might be available to a student using the book. Each student should have access to a graphing utility that can perform the following operations:

  • Simultaneously display several graphs in a user-selected viewing window
  • Explore graphs using zoom and trace
  • Approximate roots
  • Approximate intersection points
  • Approximate maxima and minima
  • Plot data sets and find associated regression equations
  • Perform basic matrix operations, including row reduction and inversion

    Most popular graphing calculators support all of these operations.

    Downloadable Programs

    All of the graphing calculator programs found in this textbook are available to download at www.mhhe.com/barnett. The presence of a calculator icon indicates the availability of downloadable TI-82, -83, -85, and -86 graphing calculator programs.

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