Question

Can't Get Past These Questions

Which of the following sets of ordered pairs represents a function?
{(-2,1),(-1,3),(2,1),(-2,2)}
{(-1,4),(1,4),(2,4),(-2,4)}
{(-1,3),(-1,4),(-1,5),(-1,6)}
{(2,2),(3,3),(4,4),(2,1)}

Given A = {(1, 3)(-1, 5}(6, 4)}, B = {(2, 0)(4, 6)(-4, 5)(0, 0)} and C = {(1, 1)(0, 2)(0, 3)(0, 4)(-3, 5)}, answer the following multiple choice question:
From the list of sets A, B, and C above, choose the set of relations that correctly represents a function.
Set A only
Sets A and C only
Sets A and B only

If G = {(-1, 7),(-8, 2),(0, 0),(6, 6)}, then the range of

Answer 1

of G is
{(7, -1),(2, -8),(0, 0),(6, 6)}
{-8, -1, 0, 6}
{0, 2, 6, 7}

Given A = {(1, 3)(-1, 5)(6, 4)}, B = {(2, 0)(4, 6)(-4, 5)(0, 0)} and C = {(1, 1)(0, 2)(0, 3)(0, 4)(-3, 5)}, answer the following multiple choice question:
From the list of sets A, B, and C, state the domain of set B.
Domain of set B: {0, 6, 5}
Domain of set B: {2, 4, -4, 0}
Set B does not have a domain