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dancing_stars23

  • one year ago

Find f(-2) for the following piecewise function.... medal

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  1. dancing_stars23
    • one year ago
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    |dw:1444177967113:dw|

  2. candyme
    • one year ago
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    First you need to figure out which equation to plug the number in. If the number is greater than or equal to 0, use the first one If the number is less than -3, use the second one If the number is greater (or equal to) -3 but still less than 0, use the last one. So where does -2 fit?

  3. dancing_stars23
    • one year ago
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    the third one then @candyme

  4. dancing_stars23
    • one year ago
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    right?i am confused....

  5. candyme
    • one year ago
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    Yep. Since there isn't a place to plug in the variable in for the third equation, whatever is there is your answer. So your answer is f(-2)=2

  6. candyme
    • one year ago
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    Piecewise functions can be a little tricky at first, but you got it! Let me know if I can help with any more :)

  7. dancing_stars23
    • one year ago
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    so every time i have a problem i will use the section where it says find f({any number}). What does the number(s) before each comma in the equation mean

  8. dancing_stars23
    • one year ago
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    it means the answer I am guessing?

  9. dancing_stars23
    • one year ago
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    I really don't know. I just learned about piecewise but about graphing not equations like these

  10. candyme
    • one year ago
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    The parts before the comma are the equation you put the variable into. So if you were looking for f(-4) for example, you would use the equation |x+3| and plug in -4 for x so you would then get |-4+3|=|-1|=1 for your answer.

  11. candyme
    • one year ago
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    If there is an x in the part before the comma, then you plug in the number you are trying to find If there is no x in the part before the comma, then that is your answer

  12. dancing_stars23
    • one year ago
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    okay, that makes perfect sense now! thanks so much! I am doing online schooling and it is so much harder to learn math on there then it is in a classroom setting!!!

  13. candyme
    • one year ago
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    I totally get that. I actually did algebra 1 and 2 online and it was much more difficult. OpenStudy was a lifesaver because you can get explanations. I have used it ever since then. You are definitely in the right place!

  14. dancing_stars23
    • one year ago
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    @candyme thanks so much for your help! :)

  15. candyme
    • one year ago
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    No problem! Good luck with your class! I will see you around the site :)

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