Chapter 5
Graphing Polynomial Functions
IN THIS CHAPTER
Exploring the factoring of quadratic equations
Solving non-factorable quadratic equations
Deciphering and counting a polynomial’s roots
Employing solutions to find factors
Graphing polynomials on the coordinate plane
Ever since those bygone days of algebra, variables have been standing in for unknowns in equations. You’re probably very comfortable with using variables by now, so you’re ready to move on and find out how to deal with equations that use multiple terms and figure out how to graph them.
When variables and constants start multiplying, the result of a variable times a constant is a monomial, which means “one term.” Examples of monomials include 3y, x2, and 4ab3c2. When you start creating expressions by adding and subtracting distinct monomials, you get polynomials, because you create something with one or more terms. Usually, monomial refers to a polynomial with one term only, binomial refers to two terms, trinomial ...
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