Question

Is the following relation a function?
Yes
No

Answer 1

NO

Explanation:

No, it's not a function

One input has more than one output.

Answer 2

No

Explanation:

A function is a relation for which each value from the set the first components of the ordered pairs is associated with exactly one value from the set of second components of the ordered pair.

From the graph for values of -4 < x < 4 we have two values.

Examples:

for x = 0 we have two values -4 and 4