Domain, Range, Relation, & Functions Part I.
1. What is the domain and range of the following relation?
{(-1,2), (2,51), (1,3) , (8,22) , (9,51)} Domain:
Range:

2. What is the domain and range of the following relation?
{(-5,6), (21,-51), (11,93) , (81,202) , (19,51)} Domain:
Range:
Part II.
1. Which relations below are functions?
Relation #1: {(-1,2) , (-4,51) , (1,2) , (8,-51)}
Relation #2: {(13,14) , (13,5) , (16,7) , (18,13)}
Relation #3: {(3,90) , (4,54) , (6,71) , (8,90)}

2. Which relations below are functions?
Relation #1: {(3,4) , (4,5) , (6,7) , (8,9)}
Relation #2: {(3,4) , (4,5) , (6,7) , (3,9)}
Relation #3: {(-3,4) , (4,-5) , (0,0) , (8,9)}
Relation #4: {(8,11) , (34,5) , (6,17) , (8,19)}

3. Which relations below are functions?
Relation #1: {(3,4) , (4,5) , (6,7) , (3,-9)}
Relation #2: {(3,4) , (4,5) , (6,7) , (5,4)}
Relation #3: {(0,4) , (4,-5) , (0,0) , (8,9)}
Relation #4: {(8,11) , (34,5) , (6,17) , (8,19)}

4. For the following relation to be a function, X cannot be what values?

{(8,11) , (34,5) , (6,17) , (X,22)}

5. For the following relation to be a function, X cannot be what values?

{(12,13) , (-11,22) , (33,101) , (X,22)}

Part III.

Function or Not.
1.
Function: 2. Function: