# If x is a number that is 7 more than y, how do you express x as a function of y?

A function shows the relationship between two variables where one of them is independent and the other being the dependent variable. For a function, every x should have a unique value of y.

## Answer: If x is a number that is 7 more than y, then x as a function of y is expressed as f (y) = x = 7 + y.

Let's express x as a function of y.

**Explanation:**

Given: x = 7 + y

The statement x as a function of y means that the value of x varies with whatever value y takes.

⇒ f ( y ) = x

⇒ f ( y ) = x = 7 + y

⇒ For every value of y the value of function changes.