Question

Determine if the relation is a function.
X:3,4,9
Y:-1,-5,6,2,7

Answer 1

it is a function if the x's are all unique

Answer 2

What is the relation between x and y? If one x relates to two different y's, then no, the relation is not a function.

Answer 3

a relation is a function if each x has a specific y matched up with it.
an easy way to tell is to look to see if the x's are unique.
they are, it is a function

Answer 4

Not necessarily. The relation is not defined. If the x-value of 3 relates to the y values 6 and 7, then no, it is not a function of x.

Answer 5

it is defined as a relation in the problem,
they just gave a domain and range

Answer 6

What IS the relation between the domain and the range in this case?

Answer 7

A function is a set of ordered pairs in which no two ordered pairs have the same first number.

Answer 8

looking back at this...
since there are only 3 x's and 5 y's, at least one of the x's must get repeated if all these numbers are used.
I believe @eulersEquation is correct, this is not a function.
sorry for any confusion.

Answer 9

There is no way to know if it is a function or not because no pairing is given. No rules...just two sets of numbers.