## kymber Group Title Domain and range of x=-1/2? I forget how to do this. ;_; one year ago one year ago

1. NotTim Group Title

is that just a point?

2. NotTim Group Title

ello

3. completeidiot Group Title

no its a line

4. NotTim Group Title

x=-1/2 did u mistype thatt

5. kymber Group Title

|dw:1358055319702:dw| This is the line

6. completeidiot Group Title

domain- x direction range- y direction i doubt there would be a domain range is quite easy to determine

7. kymber Group Title

Yeah, I know what the domain and range are, but I'm not sure what to write.

8. completeidiot Group Title

range can be written like this $(-\infty,\infty)$

9. hartnn Group Title

you find domain and range of a 'function' x=-1/2 is an equation, not a function. is your function : f(x) =x+1/2 ??

10. hartnn Group Title

or f(x) =-1/2 ??

11. kymber Group Title

No. Here is the exact problem.

12. hartnn Group Title

x=-1/2 is not a function because you have 2 or more values of 'y', you have same value of 'x'

13. kymber Group Title

And @completeidiot, is there another way to write that? I don't remember that. All real numbers? And should I just put "n/a" for the domain?

14. completeidiot Group Title

all real numbers is a valid answer

15. kymber Group Title

Then what about the domain? :|

16. completeidiot Group Title

-1/2 ?

17. hartnn Group Title

yes, domain = {-1/2} for sure.

18. kymber Group Title

Thank you!