# function question

#### markosheehan

can someone help me with the following. I think it does not as f(.5) can be subbed into both parts of the function which makes no sense.

(iii) Does the following represent a function from R to R?

f(x) =
x^2 , x ≤ 1,
x + 2, x > 0.

#### Plato

MHF Helper
can someone help me with the following. I think it does not as f(.5) can be subbed into both parts of the function which makes no sense.
(iii) Does the following represent a function from R to R?
f(x) =
x^2 , x ≤ 1,
x + 2, x > 0.
As you say $(0.5,0.25)~\&~(0.5,2.5)$ are both in the relation.