Question

What number can make the relation not a function?


x y
1 10
2 9
6 8
? 3

a. 0

b. 1

c. 7

d. 10

Answer 1

1 makes the relationship not a function because there cannot be 2 x variables the same in a function. There can be 2 or more y variables the same, just not 2 x variables.
Understand ?

Answer 2

yes

Answer 3

thanks

Answer 4

sure thing :)