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## anonymous one year ago F (×)=(1/2•[x] D:{x|xeR;-1 <X <3} DOES ANYONE KNOW HOW TO DO THIS

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1. zzr0ck3r

what is the question?

2. anonymous

It says draw the graph of the step function for the following domain be sure to label number both axis

3. anonymous

I just need to know how to do it step by step plz

4. zzr0ck3r

What do you get for $$x=1$$?

5. zzr0ck3r

Should that be $$f(x) = (\frac{1}{2})\lceil x \rceil$$?

6. anonymous

Yes that's what's on there

7. zzr0ck3r

So what this say, is take a number, find the next biggest integer and cut that in half Example f(2)=1 f(1/2) = 1/2 f(1.2) = 1

8. anonymous

Right but I don't know how to graph ot

9. anonymous

It

10. zzr0ck3r

what will any number between 0 and 1 evaluate to?

11. anonymous

0

12. zzr0ck3r

take any integer between -1 and 0, the next biggest integer is 0, cut that in half to get 0 take any number between 0 and 1, the next biggest integer is 1, cut that in half and you get 1/2 take any number between 1 and 2, the next biggest integer is 2, cut that in half to get 1. Take any number between 2 and 3, the next biggest integer is 3, cut that in half and get 1.5

13. anonymous

Thanks

14. zzr0ck3r

also, now that you understand how this works. http://www.wolframalpha.com/input/?i=%281%2F2%29ceileng%28x%29

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