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anonymous

  • one year ago

Which of the following functions has the largest value when x = 4? e(x) = x2 + 6x + 21 m(x) = 8x v(x) = 31x A)e(x) D)v(x) C)m(x) D)All the functions are equal at x = 4.

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  1. anonymous
    • one year ago
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    @misty1212

  2. anonymous
    • one year ago
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    @ganeshie8

  3. anonymous
    • one year ago
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    @jagr2713

  4. butterflydreamer
    • one year ago
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    you just want to plug in " x = 4" for each of the functions :) Let's start with \[e(x) = x^2 + 6x + 21\] So when we replace all the x's with 4, we get this equation. \[e(4) = 4^2 + 6(4) + 21 = ?\]

  5. anonymous
    • one year ago
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    WAIT

  6. butterflydreamer
    • one year ago
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    okey dokey

  7. anonymous
    • one year ago
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    61?

  8. butterflydreamer
    • one year ago
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    yep :) good job! so, e(4) = 61 Now we do the same thing with the other functions :) \[m(x) = 8x \] plug in x = 4 and we get: \[m(4) = 8(4) = ?\]

  9. anonymous
    • one year ago
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    32?

  10. butterflydreamer
    • one year ago
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    yes good! Now next function: \[v(x) = 31(x)\] plug in x = 4 \[v(4) = 31(4) = ?\]

  11. anonymous
    • one year ago
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    124?

  12. butterflydreamer
    • one year ago
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    yeeees :D So now which of the functions had the largest value when x = 4?

  13. anonymous
    • one year ago
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    its A?

  14. butterflydreamer
    • one year ago
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    not quite... we already worked out what EACH function equals when x = 4, e(4) = 61 m(4) = 32 v(4) = 124 So which one is has the largest value?

  15. anonymous
    • one year ago
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    V(4)

  16. butterflydreamer
    • one year ago
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    yesss so that means v(x) would be the largest function when x = 4

  17. anonymous
    • one year ago
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    SO the answer its B? RIGHT

  18. butterflydreamer
    • one year ago
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    yes...

  19. anonymous
    • one year ago
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    Can you help with two more please?

  20. butterflydreamer
    • one year ago
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    i can try lol

  21. anonymous
    • one year ago
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    Indicate whether the following statement is true or false: An exponential growth function never exceeds a quadratic function with a positive leading coefficient. A)TRUE B)FALSE

  22. butterflydreamer
    • one year ago
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    ohh xD i can't answer that question, sorry!

  23. anonymous
    • one year ago
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    ONE MORE?

  24. butterflydreamer
    • one year ago
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    LOL close this question and post it as a new one so other people can help you answer them xD I'm not very good with this stuff hahaha.

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