Question

Help Please with some Functions

Answer 1

It does not determine a function of the type y = f(x) because there are two y-values at for example x=1.

Answer 2

relation only
function only
neither a relation nor a function
both a relation and a function

Answer 3

Any graph shows a relation,

Answer 4

so it would be A.relation only i was stuch to whether it was a function or not

Answer 5

technically it could be a function \(r = f(\theta)\) (a so called polar function), but I don't think that's the point of the exercise.