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anonymous

  • one year ago

The graph of a function f(x) is shown below: graph of line segment with endpoints at negative two, negative one and three, three. The negative two, negative one endpoint is open and the three, three endpoint is closed. What is the domain of f(x)? −2 < x ≤ 3 −2 ≤ x < 3 −1 < y ≤ 3 −1 ≤ y < 3

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  1. anonymous
    • one year ago
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    Someone please help me @kearston0?

  2. anonymous
    • one year ago
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    @eninone

  3. anonymous
    • one year ago
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    @HydrogenCyanide?

  4. anonymous
    • one year ago
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    Can you put up a picture of the graph? I think it would make it easier for me to understand ^.^

  5. anonymous
    • one year ago
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    sure no problem

  6. anonymous
    • one year ago
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    1 Attachment
  7. anonymous
    • one year ago
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    Ok Ima take a shot at it...

  8. anonymous
    • one year ago
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    Domain is X so on the graph there's a point (-2, -1) So x would be -2

  9. anonymous
    • one year ago
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    |dw:1437000760769:dw|

  10. anonymous
    • one year ago
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    So of the choices, A or B could be the answer?

  11. anonymous
    • one year ago
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    Yes

  12. anonymous
    • one year ago
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    @eninone i still don't understand

  13. anonymous
    • one year ago
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    |dw:1437001095578:dw|

  14. anonymous
    • one year ago
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    Since we narrowed it down we can look at the dots on the graph, -2,-1 point is "Open" while 3, 3 is "closed".

  15. anonymous
    • one year ago
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    @eninone can you explain better?

  16. anonymous
    • one year ago
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    |dw:1437001167488:dw|

  17. anonymous
    • one year ago
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    I think it should be A if you make a Quandaries and Queries chart...

  18. jdoe0001
    • one year ago
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    @Noelia when asked for "domain", what is that?

  19. anonymous
    • one year ago
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    Their is only supposed to be one answer @eninone

  20. anonymous
    • one year ago
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    @jdoe0001 it means find the x value (domain is x)

  21. anonymous
    • one year ago
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    Too clarify < or > is open and Less than greater than equal too is closed...

  22. jdoe0001
    • one year ago
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    |dw:1437002172953:dw|

  23. jdoe0001
    • one year ago
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    notice the -2 has a "hole" in it, thus is EXCLUDED from the domain, so "x" is never -2

  24. anonymous
    • one year ago
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    ok

  25. anonymous
    • one year ago
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    |dw:1437001495141:dw|

  26. anonymous
    • one year ago
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    −2 < x ≤ 3

  27. anonymous
    • one year ago
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    so it is -2<x is less than or equal to 3?

  28. anonymous
    • one year ago
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    −2 < x ≤ 3

  29. jdoe0001
    • one year ago
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    so.. .whatever "x" is, or the domain we know that is NOT -2, but we know that, as it moves away from -2 and to 0, "x" is that and keeps on going till it gets to 3 bear in mind that, on the negative quadrants, the nuimbers closer to 0, are "bigger" thus -3 is really smaller than -2, because -2 is closer to 0 and -1 is bigger than -2 because -1 is closer to 0 so "x" is NOT -2, but bigger than that, and keeps on going till it gets to +3

  30. anonymous
    • one year ago
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    domain= x is less than or equal to 3 and greater than -2.

  31. anonymous
    • one year ago
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    So A?

  32. anonymous
    • one year ago
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    @Noelia yep!

  33. anonymous
    • one year ago
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    Ok thanks. Can you help me with another problem?

  34. anonymous
    • one year ago
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    why not, post!

  35. anonymous
    • one year ago
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    ok hold on

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