Question

The set of ordered pairs in the table below can be described as which of the following?
x | y
-4 | 0
-1 | -3
-3 | 5
-1 | 1

a) Relation Only

b) A Function Only

c) Both a relation and a function

d) Neither a relation nor a function

Answer 1

you see for one value of x (-1) there is two value by y. so thats not a function.

Answer 2

So a functions can not have the same X Values?

Answer 3

yes

Answer 4

it can have eqal y value

Answer 5

How do you know its neither?

Answer 6

a function is a relation where the first value of every tuple is unique through the set.

Answer 7

So would this only be a relation?

Answer 8

hmm no i dont think its neither let me think

Answer 9

i think neither @KamiBug please check me i'm nt sre

Answer 10

Any set of ordered pairs is a relation, by definition. @BradSuga

Answer 11

So, basically this is a relation?

Answer 12

>>So a functions can not have the same X Values?

The same x value cannot go to two DIFFERENT y values for that x.

Answer 13

>>So, basically this is a relation? Yes, but it may be a function, too.

Answer 14

A functions doesn't have a repeating X value and this equation does -1 -1

Answer 15

Do you have a "two timing" x value, a value of x that is paired with two different values for that x

Answer 16

it is not a function but it is a relation then

Answer 17

-1 is cheating on -3 by stepping out with 1 also.

Answer 18

So, the relation is not a function for that reason.

Answer 19

Would that be done the same?

Answer 20

Are the instructions the same?

Answer 21

The set of ordered pairs in the mapping below can be described as which of the following?