Exploring Adding and Subtracting Rational Expressions

What is a set with no elements called?

• Finite set

• Infinite set

• Universal set

• Empty set

Which of the following is an example of a finite set?

• The set of all real numbers

• The set of all odd multiples of 4

• The set of all states beginning with the letter 'O'

• The set of all prime numbers

What symbol is used to denote a universal set?

• ∩

• Ø

• A'

• U

What does the complement of a set represent?

• All elements that are in the given set

• All elements that are in either set

• All elements in the universal set that are not in the given set

• All elements that are in both sets

How is the intersection of two sets denoted?

• A - B

• A ∩ B

• A ∪ B

• A'

In a Venn diagram, what does the shaded area where two circles overlap represent?

• Difference of the sets

• Intersection of the sets

• Complement of the sets

• Union of the sets

What is the union of two sets?

• All elements that are in both sets without duplicates

• All elements that are in either set without duplicates

• All elements that are in the universal set

• All elements that are in the given set

Which of the following is true about a subset?

• A set is a subset of another set if it has fewer elements than the other set

• A set is a subset of another set if it contains at least one element of the other set

• A set is a subset of another set if all its elements are contained in the other set

• A set is a subset of another set if it has more elements than the other set

If A is the set of natural numbers less than 10 and B is the set {2, 5, 9}, which statement is true?

• A is a subset of B

• B is a subset of A

• A and B are equal

• A and B are disjoint sets

Which of the following sets is a subset of the set of all hearts in a deck of cards?

• All red cards in a deck

• All hearts in a deck

• All fours in a deck

• All face cards in a deck