Algebra 1
3-8 Unions and Intersections of Sets
Work space:
Certain regions of the Venn diagram in the Solve It show _______________
_______________________ of sets.
Focus Question
What are the union and intersection of sets?
The union of two or more sets is the set that
contains _______________________________.
The intersection of two or more sets is the set
of elements that _________________________.
To find the union of two sets, ____________________________________
____________________. An element is in the union if it ______________
____________________. In the Venn diagram below, ____________ is
shaded.
An element is in the intersection if __________________________. When
you find the intersection of two sets, _______________________________
______________. In the Venn Diagram below, _______________ is
shaded.
________________ have ____________________. The intersection of
disjoint sets is ____________. The diagram below shows two disjoint sets.
You can draw Venn diagrams to solve problems involving relationships
between sets.
You can also use Venn diagrams to show the ___________ of elements in
the union or intersection of sets.