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I really need help with this Pre Calculus problem =[

  1. Aug 21, 2011 #1
    sketch and graph
    1. y= [x][/3] +2
    2. y= squareroot x-3
    3. y= Ix-2I
    4. y= [y][/2] - 1
  2. jcsd
  3. Aug 22, 2011 #2
    If you're not sure what the graph looks like, then just plug in some numbers for x, (x=1, x=2, x=3) and then plot the points. Then just connect them with a smooth line.
  4. Aug 22, 2011 #3
    I don't actually understand your notation. What are those square brackets and "I"s?
  5. Aug 22, 2011 #4


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    Staff: Mentor

    I don't understand even one of these. What do the square brackets mean?

    But I'll take a stab at (2) :tongue2:

    Last edited by a moderator: Apr 26, 2017
  6. Aug 22, 2011 #5
    Yes what are the square brackets?
  7. Aug 22, 2011 #6
    I think it's pretty straight forward, albeit bizarre notation. The brackets mean nothing, and the "I...I" are supposed to be absolute value bars "|...|".
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