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tyty

  • 4 years ago

Solve |2y - 2| = 15

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  1. myininaya
    • 4 years ago
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    2y-2=15 or 2y-2=-15 solve both for y

  2. lilg132
    • 4 years ago
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    8.5

  3. lilg132
    • 4 years ago
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    i thought you cant have an abosolute value that = to a negative number?

  4. myininaya
    • 4 years ago
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    we have |something|=positive

  5. myininaya
    • 4 years ago
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    not |something|=negative

  6. lilg132
    • 4 years ago
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    but you wrote or 2y-2=-15 ?

  7. myininaya
    • 4 years ago
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    \[2y=17 => y=\frac{17}{2}\] \[2y=-13 => y=\frac{-13}{2}\] i wrote that because we have|something|=positive gives us two cases

  8. lilg132
    • 4 years ago
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    oh ok but if it is |something| = negative then we have no soloution right?

  9. myininaya
    • 4 years ago
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    right!

  10. lilg132
    • 4 years ago
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    thanks for that was abit confused

  11. myininaya
    • 4 years ago
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    tomas yes you can probably have several i know for a fact you can have two i don't think there is a limit

  12. myininaya
    • 4 years ago
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    |f(x)|>=0 so thats why |f(x)| can not have negative output

  13. lilg132
    • 4 years ago
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    ok thanks :)

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