For this case we have, by definition, a function is given in the form:
[tex]y = f (x)[/tex]
Where x is the independent variable and y is the dependent variable.
If we have:
[tex]x + y = 3[/tex]
We can rewrite it in the following way:
[tex]y = 3-x[/tex]
Comparing with the generic definition of a function, we have that[tex]f (x) = 3-x[/tex]
Answer:
A relation that could be rewritten using function notation is option b.
[tex]x+y = 3[/tex]
