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AngelaB97

  • one year ago

someone please help!! Find the union and intersection of [-4,2) and [0,3]

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  1. myininaya
    • one year ago
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    I would draw it

  2. myininaya
    • one year ago
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    what does [4,2) mean ? just asking because that doesn't make sense

  3. myininaya
    • one year ago
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    4 is greater than 2

  4. AngelaB97
    • one year ago
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    i meant [-4,2) sorry

  5. Goose.
    • one year ago
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    Are those supposed to be Ordered pairs?

  6. AngelaB97
    • one year ago
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    yes

  7. myininaya
    • one year ago
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    they aren't ordered pairs they are intervals (sets of numbers)

  8. myininaya
    • one year ago
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    |dw:1441393974757:dw| draw a number line first

  9. myininaya
    • one year ago
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    then draw both sets of numbers

  10. myininaya
    • one year ago
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    |dw:1441394023352:dw|

  11. myininaya
    • one year ago
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    the intersection is where you see both lines

  12. myininaya
    • one year ago
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    the union is where you see any line

  13. anonymous
    • one year ago
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    A tad more information, say we have two numbers a and b such that a<b [a,b] this means it's included. |dw:1441394739698:dw| maybe this will help you understand the drawing above a bit more! :)

  14. AngelaB97
    • one year ago
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    thanks you guys

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spraguer (Moderator)
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