Question

15 POINTS

O Function
O Not a function
Relation 1
Domain Range
O Function
E
V
d
r
f
Not a function
с
с
с
r
Relation 3
{(-3, -3),(-5, 9), (-8, 9), (9, -3))
с
O Function
Domain Range
2
pencil
8
Relation 2
Not a function
-7
2
-4
30
Function
Not a function
moon
pencil
door
moon
Relation 4
{(x, -3), (v, -3), (c, -3), (y, -3)}

Answer 1

Relation 1: Function

No input in the domain is used more than once.

Relation 2: NOT a function

Input of 2 is used more than once, so it has two outputs for that one input.

Relation 3: Function

No x-value is repeated.

Relation 4: Function

No x-value is repeated.