Question

Is the following relation a function.

A) yes
B) no

Answer 1

B-No

Explanation:

I put yes and got the question wrong. I'm also on the same school website this person uses.

Answer 2

yes

Explanation:

A relation is a function in which for each input there is only one output.

In a relation, y is a function of x.

Now we look at the mapping

For input 6, -1 is the output

for input -1, 2 is the output

for input 4, 3 is the output

for input 0, 3 is the output

For each input , there is an output. Input is not repeating. Input is occurring only once.

So this relation is a function.