Question

Guided Practice

Determine whether the relation is a function. Explain why or why not.


{(2, 5), (3, –5), (4, 5), (5, –5)}


A.
Yes; no value in the domain corresponds to more than one value of the range.


B.
No; the domain value 5 corresponds to two range values, 2 and 3.


C.
Yes; multiple domain values correspond to the same range value.

Answer 1

Ok so it is a function

A. Yes; no value in the domain corresponds to more than one value of the range.

Explanation:

Since there is one value of

y

for every value of

x

in

( 2 , 5 ) ,

( 3 , − 5 ) ,

( 4 , 5 ) ,

( 5, -5) , this relation is a function.

The relation is a function.