# Is #xy = 7 # a function?

##### 1 Answer

Aug 4, 2015

If

#### Explanation:

Solve the equation for

We get

Now ask yourself: If I choose an

In this case the answer IS no, so,

**For comparison**

If

When we solve for

Now, if I put in a number for

But if I EVER get two numbers (even just for one single solitary

So for