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Homework Help: Help me in this question

  1. Oct 10, 2009 #1

    Help me in this question

    Question in the picture ,,,


  2. jcsd
  3. Oct 10, 2009 #2


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    Science Advisor

    What help do you need? You can see that, since there are 5 horizontal and 5 vertical lines between the origin and "10" that each line represents a change of 2 in x and y. To find f(-4), start at the origin and go left(because it is negative) 2 lines (2 times 2= 4). Now go straight up to the graph of the function. How many lines is that? Don't forget to multiply the number of lines by 2 to get the function value.
  4. Oct 10, 2009 #3
    Thank you
    you given me Answer Key
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