Algebraic expressions

which of the following sets of ordered pairs represents a function?

{(-22)}
{(-14)}
{(-16)}
{(21)}

use complete sentences to describe the relationship between sets a and b if a is a subset of or is equal to b.
a = {8}
b = {7, 8, 9}

which of the following properties is a(b · c) = (a · b)c an example of?
associative property
commutative property
multiplicative identity
distributive property

given: a = {a, e, i, o, u}, b = {a, l, g, e, b, r}, c = {m, y, t, h}, a ∩ c is
m, a, e, i, o, u, t, h
the empty set
i
a, e, i, o, u, y

if g = {(-1, , , , 6)}, then the range of g is
{(7, -, -, , 6)}
{-8, -1, 0, 6}
{0, 2, 6, 7}

given b = {a, l, g, e, b, r} and c = {m, y, t, h}, find b ∪ c.
{}
{a}
{a, b, e, g, h, l, m, r, t, y}

if a ⊂ b and a ∩ b = θ then which of the following can be concluded about the sets a and b?
set a has more elements in it than set b.
set a is the set containing zero.
set a is the empty set.
both sets a and b are the empty set.

given a = {a, e, i, o, u} and b = {a, l, g, e, b, r}, find a ∪ b.
{}
{a, e}
{a, b, e, g, i, l, o, r, u}

which of the following properties is 5(3 + 2) = 15 + 10 an example of?
associative property
commutative property
multiplicative identity
distributive property

given f(x) = 3x - 1 and g(x)= -x + 6, find f(-2) + g(5).
-6
6
8

list all of the elements of set a if a = {x|x is an integer and -6 ≤ x < 0}
{-6, -5, -4, -3, -2, -1, 0}
{-6, -5, -4, -3, -2, -1}
{-5, -4, -3, -2, -1}