1. Chapter 2 Functions, Equations, and Graphs
Section 2.1 day Relations and Functions
Objectives: to graph relations and to identify functions

2. Vocabulary input output inputs outputs domain range relation domain
A relation is a set of pairs of and data.
The domain of a relation is the set of all , or , of the ordered pairs.
The range of a relation is the set of all , or , of the ordered pairs.
The mapping diagram links elements of the with
corresponding elements of the
A function is a in which each element of the is
paired with element in the
inputs
x-coordinates
outputs
y-coordinates
domain
range
relation
domain
exactly one
range

7. Assignment
Pgs
# 1-15, complete # 1-4 on graph paper worksheet