2. Inequalities and their
Graphs
Objective: To write and
graph simple inequalities with
one variable
3. Inequalities and their Graphs
What is a good definition
for Inequality?
An inequality is a statement that
two expressions are not equal
2 3 4 5 6 7 8
4. Inequalities and their Graphs
Terms you see and need to know
to graph inequalities correctly
< less than Notice
open
> greater than circles
5. Inequalities and their Graphs
Terms you see and need to know
to graph inequalities correctly
≤ less than or equal to
≥ greater than or equal to
Notice colored in circles
6. Inequalities and their Graphs
Let’s work a few together
Notice: when variable is
on left side, sign shows
x >3 direction of solution
3
7. Inequalities and their Graphs
Let’s work a few together
Notice: when variable is
x<7
on left side, sign shows
direction of solution
7
8. Inequalities and their Graphs
Let’s work a few together
Notice: when variable is
p ≤ −2 on left side, sign shows
direction of solution
-2 Color in
circle
9. Inequalities and their Graphs
Let’s work a few together
Notice: when variable is
x≥8
on left side, sign shows
direction of solution
8
Color in circle
