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anonymous

  • one year ago

Which of the following expressions represents a function? x2 + y2 = 9 {(4, 2), (4, –2), (9, 3), (9, –3)} x = 4 2x + y = 5

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  1. anonymous
    • one year ago
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    Do you know what a function is?

  2. anonymous
    • one year ago
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    well sort of

  3. anonymous
    • one year ago
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    What do you think it is?

  4. anonymous
    • one year ago
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    c

  5. anonymous
    • one year ago
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    A function is where one input has EXACTLY one output. So do you thing that C has one input and one output?

  6. anonymous
    • one year ago
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    oo so its B

  7. anonymous
    • one year ago
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    Yes cause you dont have a repeat of a number the X side which is your output

  8. anonymous
    • one year ago
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    OOO ok. lol can u continue helping me with 3 more questions if u have time?

  9. anonymous
    • one year ago
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    You have: (4, 2) (4, –2) (9, 3) (9, –3) This wouldn't be a function: (4,2) (4,-2) (9,3) (9,3) Cause you have a repeat of the number 3 in the X side

  10. anonymous
    • one year ago
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    ooooo ok lol thx alot

  11. anonymous
    • one year ago
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    You're Welcome

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