Question

Which relation could be rewritten using FUNCTION notation

A) x=3

B) x+y=3

C) x+y^2=3

D) x^2 + y^2=3

Answer 1

For this case we have, by definition, a function is given in the form:

`y = f (x)`

Where x is the independent variable and y is the dependent variable.

If we have:

`x + y = 3`

We can rewrite it in the following way:

`y = 3-x`

Comparing with the generic definition of a function, we have that
`f (x) = 3-x`

Answer:

A relation that could be rewritten using function notation is option b.

`x+y = 3`