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xKingx Group Title

What is the graph of the absolute value equation? y = 5|x|

  • one year ago
  • one year ago

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  1. xKingx Group Title
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    • one year ago
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  2. wach Group Title
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    The graph of an absolute value equation is a V-shape.

    • one year ago
  3. wach Group Title
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    But what does absolute value do to a number? It makes it always positive. So the graph should be positive and point upwards.

    • one year ago
  4. wach Group Title
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    The 5 makes the slope more dramatic. Try multiplying numbers by 5 to demonstrate this: 1 x 5 = 5, 2 x 5 = 10, 4 x 5 = 20

    • one year ago
  5. j814wong Group Title
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    Or rather, a negative value is made a positive value so the negative side is flipped up along the x-axis.

    • one year ago
  6. wach Group Title
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    Therefore, the slope points will increase very dramatically and the link should become more vertical, if that makes sense.

    • one year ago
  7. wach Group Title
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    Yes ^

    • one year ago
  8. wach Group Title
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    @xKingx - The graph should make sense if you try plugging in values for x, and the finding y to find a coordinate. :D

    • one year ago
  9. xKingx Group Title
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    I think I get the first part, but how would I use x to find y?

    • one year ago
  10. eyust707 Group Title
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    |dw:1349487109618:dw|

    • one year ago
  11. eyust707 Group Title
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    |dw:1349487133105:dw|

    • one year ago
  12. eyust707 Group Title
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    Lets plug in x=0|dw:1349487181412:dw|

    • one year ago
  13. eyust707 Group Title
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    When x = 1|dw:1349487247460:dw|

    • one year ago
  14. eyust707 Group Title
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    |dw:1349487285431:dw|

    • one year ago
  15. eyust707 Group Title
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    When x is 0, y is 0 When x is 1, y is 5 When x is -1, y is 5

    • one year ago
  16. eyust707 Group Title
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    Now look at the graphs.. there is only one of them that reflects this

    • one year ago
  17. xKingx Group Title
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    So it's actually B?

    • one year ago
  18. eyust707 Group Title
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    |dw:1349487457142:dw|

    • one year ago
  19. eyust707 Group Title
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    |dw:1349487531328:dw|when x is 0.. y is 0

    • one year ago
  20. eyust707 Group Title
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    when x is 1|dw:1349487556857:dw|

    • one year ago
  21. eyust707 Group Title
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    y is 5|dw:1349487573888:dw|

    • one year ago
  22. eyust707 Group Title
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    |dw:1349487595890:dw|

    • one year ago
  23. eyust707 Group Title
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    When x is -1 y is 5|dw:1349487617637:dw|

    • one year ago
  24. eyust707 Group Title
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    |dw:1349487643353:dw|

    • one year ago
  25. eyust707 Group Title
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    |dw:1349487660182:dw|

    • one year ago
  26. eyust707 Group Title
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    Do you see how I did that?

    • one year ago
  27. xKingx Group Title
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    Not exactly...

    • one year ago
  28. eyust707 Group Title
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    What part do you not understand?

    • one year ago
  29. xKingx Group Title
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    I'm not sure how you applied what you said to the graph.

    • one year ago
  30. eyust707 Group Title
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    |dw:1349487876738:dw|

    • one year ago
  31. eyust707 Group Title
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    Here is a plane

    • one year ago
  32. eyust707 Group Title
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    I can tell you the location of any point on it by giving you two numbers; an x-value and a y-value

    • one year ago
  33. eyust707 Group Title
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    the x value tells you how far left and right to move

    • one year ago
  34. eyust707 Group Title
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    the y-value tells you how far up and down to move

    • one year ago
  35. eyust707 Group Title
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    If I give you x = 3 and y=2 you want to locate the point you would start at the center of the cross |dw:1349488023608:dw| Then move 3 places to the left |dw:1349488041166:dw| and two places up |dw:1349488101424:dw|

    • one year ago
  36. eyust707 Group Title
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    should say 3 places to the *right

    • one year ago
  37. eyust707 Group Title
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    Right at the tip of this arrow is where x=3 and y = 2|dw:1349488190735:dw|

    • one year ago
  38. eyust707 Group Title
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    Are you following?

    • one year ago
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