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Plot of greatest integer fuction

  1. Sep 9, 2008 #1
    I was given this homework today and without much explanation from the teacher , I can't find anything similar in my book,
    1.- [[ x]] = [[y]] find outside domain/range , argue inclusion or exclusion
    2.- compare and contrast (1) y=[[2x]] (2) y=2[[x]] (3) y= [[x/2]]
    3.- state domain and range, plot
    y { ( 1/4)x+1 , x<-1 ; [[ x]]-2 , -1 <= x<=5 ; (-1/2 ) x +1 ,5<x}

    could someone help me, I usually understand math without any problem, but now I have little clue.
    Last edited: Sep 9, 2008
  2. jcsd
  3. Sep 10, 2008 #2
    For number 1 can you make a sinple x y chart for your equation? Try something like

    x | y

    Try the same method for number 2

    Try the same method for number 3 as well but broaden the range of values you try for x in order to cover all the possibilities.

    Do you know what domain and range is? Do you know what inclusion and exclusion means?
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