Unit Test Answers

2 circles labeled Set A and Set B overlap. Set A contains 1, set B contains 3, and the overlap of the 2 circles contains 2. The number 4 is outside of the circles.

Consider U = {x|x is a negative real number}.Which is an empty set?

Carrie is finding the set of even numbers within the set of prime numbers.Of the sets described, which is the universal set?

Consider the following sets.U = {all real number points on a number line}A = {solutions to the inequality 3x + 4 ≥ 13}B = {solutions to the inequality x + 3 ≤ 4}For which values of x is A ⋃ B = Ø?

In the Venn diagram, consider U = {students in 10th grade at Lee High School}.The diagram shows the electives chosen by the students in the 10th grade.

If the set U = {all positive integers} and set A = {x|x ∈ U and x is an odd positive integer}, which describes the complement of set A, Ac?

S is a subset within a universal set, U. If S = {x, y, 4, 9, ?}, which could describe U?

The Venn diagram shows three types of numbers: odd (O), even (E), and prime (P).

The diagram shows the universal set U = {parallelograms}.Set A represents parallelograms with four congruent sides, while B represents parallelograms with four congruent angles.

2 circles labeled Set A and Set B overlap. Set A contains 1, set B contains 3, and the overlap of the 2 circles contains 2. The number 4 is outside of the circles.