Answer:
The relation (x , y) is not a function if the missing value of x is 3
Step-by-step explanation:
* Lets explain the difference between the relation and the function
- An ordered pair is a set of inputs and outputs and represents a
relationship between the two values
- A relation is a set of inputs and outputs, and a function is a relation
with one output for each input.
- Not all the relations are functions
- All the functions are relations
- In (x , y) relation x can not repeated
- Ex:
# {(2 , 5) , (3 , 7) , (3 , -1)} is a relation can not be a function because
the input 3 has two output 7 and -1 (x repeated)
# {(-1 , 3) , (2 , 5) , (4 , 10)} is a function because every x has only one y
* Lets solve the problem
∵ The relation is {(3 , 10) , (x , 20)}
- The relation will be function if x any number except 3
∴ The relation (x , y) is not a function if the missing value of x is 3
