Compound Inequalities If we have two sets A and B, then we say that an element belongs to A
and
B if it belongs to both of them. For example, a student may belong
to the honor society if that student is a member of A and
B where
B = the collection of all student has a GPA of at least
3.0.
Example
then A and B is the in between part of the number line.
Exercises
Write the following on a number line:
If we have two sets A and B, then we say that an element belongs to A
or
B is it belongs to either of them. For example, a person can get
a back seat pass to a concert if that person belongs to A or
B where
B =
set of people that sit in the VIP seats.
Example:
Exercises
Sketch the solution set on a number line.
We also use intersection (I) for and and union (U)
for or. Double Inequalities
We can write a compound inequality
as a double inequality as in the example
Exercise
email Questions and Suggestions
