AriM 2 years ago Help me solve this piecewise function pls. f(x) = 0 if x <0 0 if x is greater than or equal to 0 g(x) = -x if x < 0 0, if x is greater than or equal to 0 f+g=?

What don't you understand?

2. AriM

im just not sure what to do. Thats why i just need an example of f+g so i can see it. It's like you add the first line of each right?

Try graphing it...Do you know how? I am not very good at explaining mathmatics without graph paper and not in person but you know who is excellent at it? @satellite73 @amistre64 @hartnn @Callisto ! There is a reason they are mods here!

Now, try not to have to fall back on the mods too much because they are very busy. Be patient, they will help when they get a chance.

5. AriM

I have a test in 2 hours though :(

6. AriM

Its okay, they will be here soon!

8. AriM

I literally just need this one answer so i can see how its done so i can do f-g, f*g, and f/g

Well, I will stick here with you to make sure you get some help. Give them some time I have contacted them.

10. AriM

ok

11. AriM

@SnuggieLad can you maybe help me with something eles than?

12. Callisto

f(x) = 0 if x <0 0 if x is greater than or equal to 0 What does this function imply?

13. Callisto

Whatever x you have, it is still....?

14. AriM

for f+g i got -x if x<0 and x if x is greater than or = to 0

15. Callisto

Right. f has no effect when doing the addition as its value is always 0. So, f+g just depends on g.

16. AriM

oh, ok.

17. AriM

do you think u can help me with another problem?

18. satellite73

it is really \(f(x)=0\) in both cases? or is there a typo there?

19. AriM

umm no? i don't know. All i know is i just based it off an answer i saw in the book so thats how i did it.

20. Callisto

I am sorry that I have to go now. Best of luck for your test.