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I need help

  1. Sep 1, 2003 #1
    I need help!!!

    I am practicing out of my book and this problem is killing me.

    Given the following equation, choose the best scale for the axes for x = 10, 20, and 30

    y = 2x – 3



    A) x-axis: from 0 to 80, intervals every 20; y-axis: from 0 to 40, intervals every 10.
    B) x-axis: from 0 to 15, intervals every 10; y-axis: from 0 to 40, intervals every 20
    C) x-axis: from 0 to 40, intervals every 10; y-axis: from 0 to 80, intervals every 10
    D) x-axis: from 20 to 40, intervals every 5; y-axis: from 27 to 80, intervals every 40
     
  2. jcsd
  3. Sep 1, 2003 #2

    HallsofIvy

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    Staff Emeritus
    Science Advisor

    For each of A, B, C, D, see what y is for the smallest and largest given values of x. Are those values included in the suggested values for y?
     
  4. Sep 1, 2003 #3
    I am not sure of what you are asking? Can you please elaborate.
     
  5. Sep 1, 2003 #4

    FZ+

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    Work out the x and y coordinates for each of the values of x you are given, and think how much detail you want to just fit them, and have the right resolution.
     
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