, ‘ factors in factored form).
Algebra 2 Pre-AP
Add and Subtract Rational Expressions
Common Denominators
Remember that 1n order to add two or more rational expressions, they must have the same
denominator. Let’s start with something familiar:
at i a ‘2

Algebra 2 Pre—AP
Multiply and Divide Rational Expressions
Simplifying Rational Expressions
A rational expression is in simpliﬁed form if its numerator and denominator have no common
factors (other than i1). To simplify a rational expression, apply the fol

Algebra 2 Pre-AP
mGraph General Rational Functions
Graphing Translations of Simple Rational Functions
a
X - h
points to either sides of the asymptotes, and connect the dots to form the two branches.
To graph a rational function of the form y = + k, draw

Algebra 2 Pre—AP
Graph Simple Rational Functions
Rational Functions
39;)
A rational ﬁmction is a function in the form f(X) = ( )
q X
, where p(X) and q(X) are polynomial
functions and q (X) ¢ 0.
The Domain
Recall that in a fraction, zero in the denominato

Algebra 2 Pre-AP Name
T'Model Inverse and Joint Variation
Inverse Variation
Remember that in Chapter 2 you learned that two variables x and y show direct variation if
y = ax for some nonzero constant a. We can also use inverse variation.
Two variables x