Section 3.7 Rational Functions
A rational function is a function of the form
r ( x) =
P ( x)
Q( x)
where P and Q are polynomials.
Rational Functions and Asymptotes
The domain of a rational function co
Section 2.2 Graphs of Functions
DEFINITION: A function f is a rule that assigns to each element x in a set A exactly one
element, called f (x), in a set B . Its graph is the set of ordered pairs
cfw_(
Section 2.3 Getting Information from the Graph of a
Function
Increasing and Decreasing Functions
DEFINITION: A function f is called increasing on an interval I if
f (x1 ) < f (x2 ) whenever x1 < x2 in
Section 2.1 What Is a Function?
DEFINITION: A function f is a rule that assigns to each element x in a set A exactly one
element, called f (x), in a set B . The set A is called the domain of f. The ra
Section 2.4 Average Rate of Change of a Function
Suppose you take a car trip and record the distance that you travel every few minutes. The
distance s you have traveled is a function of the time t:
s(