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Ti-84 Plus Graphing Calculator For Dummies, 2nd Edition by C. C. Edwards, Jeff McCalla

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Chapter 4

Solving Equations

In This Chapter

arrow Entering, editing, and solving equations in the Equation Solver

arrow Guessing the value to find multiple solutions

arrow Using the Solve function

arrow Finding roots of polynomials

arrow Solving systems of equations

Many students don’t know what a powerful tool their calculator is! You can use your calculator to solve all kinds of different equations. Three methods are discussed in this chapter: Equation Solver, Solve function, and the PlySmlt2 app. A fourth method of solving equations — graphing — is covered in Chapter 11.

tip.eps One note that applies to all the methods of solving equations discussed in this chapter: Your calculator automatically displays irrational answers as decimals. For instance, the 9781118592885-eq04001.eps will be displayed as 1.414213562. This can be problematic if you ...

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