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Range of a function f(x)

  1. Oct 13, 2013 #1
    1. The problem statement, all variables and given/known data
    Please refer to the image attached. The first part, (i).

    2. Relevant equations
    None.


    3. The attempt at a solution

    My answer is 0 </= x </= 4, but the answer says 0<x<4.
    Why are 0 and 4 not included?

    Since the domain includes 6, then 0.5(6)+1 =4, 4 should be included right?
     

    Attached Files:

  2. jcsd
  3. Oct 13, 2013 #2
    You are right,0 and 4 are part of the range.
     
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