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anonymous

  • one year ago

Stan evaluated a function with a value and got 3 as the result. He wrote the entire process as a sentence. The function A.f(x)=x^2+2x B.f(x)=x^2-3x , When evaluated with A.3 B.-3 gives the value of 3 which function gices the value 3 when plugged in with 3 or -3 ?

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  1. anonymous
    • one year ago
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    i do not understand what this question is asking let me try to read it again

  2. anonymous
    • one year ago
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    first off you have two functions

  3. anonymous
    • one year ago
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    yes function a and b

  4. anonymous
    • one year ago
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    not "a function" but if you get 3 for the first one, it means \[f(x)=x^2+2x=3\]

  5. anonymous
    • one year ago
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    oooh i see what it is asking

  6. anonymous
    • one year ago
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    plug in 3 in to each function and see which one gives 3 as an answer

  7. anonymous
    • one year ago
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    ive tried that but i keep getting 15 or -15

  8. anonymous
    • one year ago
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    for the first one?

  9. anonymous
    • one year ago
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    the question asks "which function gices the value 3 when plugged in with 3 or -3 ?"

  10. anonymous
    • one year ago
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    so evidently it is not A since \[3^2+2\times 3=15\]

  11. anonymous
    • one year ago
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    however if you try B you should get it

  12. anonymous
    • one year ago
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    for f(x)=x^2+2x i got -15 when plugged in with -3 and for f(x)=x^2-3x i got 0 when plugged in with -3

  13. anonymous
    • one year ago
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    yeah true but if you plug in 3 in to the second one, you should get 3 out

  14. anonymous
    • one year ago
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    btw the second one does not get 0 if you plug in 3

  15. anonymous
    • one year ago
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    hmmm hold on a second

  16. anonymous
    • one year ago
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    \[f(x)=x^2+2x\] \[f(-3)=(-3)^2+2\times (-3)\] try that

  17. anonymous
    • one year ago
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    you do not get \(-15\) because \((-3)^2=9\) not \(-9\) you should get \(9-6=3\) for A

  18. anonymous
    • one year ago
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    that was correct thank you so much can i ask you just one more question

  19. anonymous
    • one year ago
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    sure

  20. anonymous
    • one year ago
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    A school is planning an event to raise $1,000 for charity. The cost of organizing the event is $200. The tickets are priced at $6 per child and $8 per adult. If x children and y adults attend the event, the equation that represents the total revenue that the organizers must collect from ticket sales to raise the targeted amount of $1,000 after paying for the $200 in expenses is . If the event were only for adults, adults would have to attend for the organizers to raise the targeted amount.

  21. anonymous
    • one year ago
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    how many adults would have to attend for the organizers to raise the targeted amount.? sorry

  22. anonymous
    • one year ago
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    & how would you set it up as a equation with the given information

  23. anonymous
    • one year ago
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    @satellite73

  24. anonymous
    • one year ago
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    can you please help me on this question

  25. anonymous
    • one year ago
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    @misty1212

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