Question

open up resources - 8th grade > identify functions: tables acc
look at this table:
x y
13 7
11 -18
13 16
is this relation a function?
yes no
submit
work it out
not feeling ready yet? these can help:
input/output tables: find the rule (83)
lesson: relations

Explanation:

Step1: Recall function definition

A relation is a function if every input ($x$-value) has exactly one output ($y$-value).

Step2: Check $x$-value repeats

Look at the table: the $x$-value 13 appears twice, with $y$-values 7 and 16. This means one input has two different outputs.

Answer:

no