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anonymous

  • one year ago

domain and range of y=.5x-3?

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  1. RagingSquirrel
    • one year ago
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    Domain: possible x values Range: possible y values

  2. anonymous
    • one year ago
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    so the domain is all real numbers?

  3. RagingSquirrel
    • one year ago
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    Yep! You set your answer up like this: {xIx=R(the symbol for real numbers)}

  4. anonymous
    • one year ago
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    wait what?

  5. anonymous
    • one year ago
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    so like (∞,∞) or something?

  6. RagingSquirrel
    • one year ago
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    My math teacher makes me do it like this. It's good practice if you aren't already doing it. |dw:1443151147735:dw| It stands for The set of all X such that X is equal to all real numbers It's kind of connfusing. Basically all you're doing is putting brackets around your answer and an xI in front of it.

  7. RagingSquirrel
    • one year ago
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    That's set builder notation. Is it asking for interval notation?

  8. anonymous
    • one year ago
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    yes

  9. RagingSquirrel
    • one year ago
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    Yeah, interval notation would be the brackets. So (∞,∞) is right.

  10. anonymous
    • one year ago
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    and the range would be the same?

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