## anonymous one year ago what is the limit when x approaches 0 from the right when intx

1. freckles

what is intx?

2. freckles

is that floor function?

3. anonymous

an integer times x

4. freckles

really? that is odd notation then $\lim_{x \rightarrow 0^+} c x =c \lim_{x \rightarrow 0^+}x \text{ since } c \text{ is a constant } \\ \text{ doesn't matter if it is an integer or a real number } \\ \text{ can you still bring the constant multiple out }$

5. freckles

do you know how to find the limit as x approaches 0 from the right of the function f(x)=x?

6. anonymous

i didn't understand

7. freckles

you can bring the constant multiple outside the limit but if you haven't talked about that just graph f(x)=cx if c is positive you have something that looks like |dw:1442048532835:dw| if c is negative you have something that looks like |dw:1442048507739:dw|

8. freckles

either way no matter if c is negative or positive you should see that the limit is the same when x approaches from the right

9. freckles

you can even take c=0 and you would have f(x)=0 then and we know the limit as x approaches any number of constant function f(x)=c is going to be c

10. anonymous

okay so how can i determine the limit then

11. freckles

you can use the graph above

12. freckles

|dw:1442048761427:dw|

13. anonymous

so we can always us 0 as c to solve ?

14. freckles

no anyways that is if you really have an integer times x but I'm not too sure you have this intx is weird notation for that anyways hopes the above helps if you really meant c times x where c is an integer

15. freckles

I didn't say you can use c=0 you have to consider all cases as I did above

16. freckles

c>0 c<0 c=0 but in all three cases you should see the same limit

17. freckles

18. anonymous

can i use the same method for limit when x approaches 0 from the left when intx

19. anonymous

i will have the same answer?