Question

13/20
x | y
3 | 1
-2 | -4
0 | 2
3 | 6
is this table a function or not a function?
function
not a function

Explanation:

Step1: Recall function definition

A function maps each input $x$ to exactly one output $y$.

Step2: Check $x$-values in table

The $x$-value 3 appears twice, paired with $y=1$ and $y=6$.

Step3: Verify violation

One $x$ has two distinct $y$ values, violating the function rule.

Answer:

Not a Function