Algebra Rational Algebraic Expressions

WARMUP Simplify:

5-4 Rational Algebraic Expressions Recall that a rational number is one that can be expressed as a quotient of integers. A rational algebraic expression, or rational expression, is one that can be expressed as a quotient of polynomials. Examples:

5-4 Rational Algebraic Expressions A rational expression is in simplified form, or in simplest form, when it is expressed as a quotient of polynomials whose greatest common factor is 1. In other words, look for common factors

5-4 Rational Algebraic Expressions Simplify:

5-4 Rational Algebraic Expressions Try this:

5-4 Rational Algebraic Expressions A function that is defined by a simplified rational expression in one variable is called a rational function.

5-4 Rational Algebraic Expressions Find the domain and the zeros of function  :

5-4 Rational Algebraic Expressions Examples:

5-4 Rational Algebraic Expressions Homework: p. 228 # 1 – 27 ODD

5-4 Rational Algebraic Expressions