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  1. butterflydreamer
    • one year ago
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    For your first question, they've already given you the value of f(x) and g(x) so all you want to do is plug it into the equation. :) \[f(x) = 9x + 4 \] \[ g(x) = -5x + 1\] Therefore g(x) - f(x) would equal: \[-5x + 1 - ( 9x + 4) = ? \]

  2. anonymous
    • one year ago
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    =-14x-3

  3. butterflydreamer
    • one year ago
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    correct :)

  4. anonymous
    • one year ago
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    :]

  5. butterflydreamer
    • one year ago
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    For the next question: f (x) = 9x - 5 f (2) = 9(2) - 5 = ? Then after you find out what f(2) equals to, we want to find what g(4) equals to. So, g (x) = 6x g (4) = 6(4) = ? Then f(2) - g(4) = ?

  6. anonymous
    • one year ago
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    they are easy just try to simply solve it

  7. anonymous
    • one year ago
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    11?

  8. butterflydreamer
    • one year ago
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    not quiteeee. So what did you get for f(2) = ?

  9. butterflydreamer
    • one year ago
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    Note: f(2) = 9(2) - 5 = 18 - 5 = 13 g(4) = 6(4) = 24 f(2) - g(4) = 13 - 24 = ?

  10. anonymous
    • one year ago
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    oh ok so it would be -11

  11. butterflydreamer
    • one year ago
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    yyyep :)

  12. butterflydreamer
    • one year ago
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    For question 3. You need to multiply both f(x) and g(x) together. Since \[f(x) = x^2 + 6x\] and \[g(x) = 2x^3\] Multiply both together and we get: \[f(x) \times g(x) = 2x^3 (x^2 + 6x) = ?\]

  13. anonymous
    • one year ago
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    multiply the numbers and the powers will add

  14. anonymous
    • one year ago
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    would is be D?

  15. butterflydreamer
    • one year ago
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    yyessss ^_^

  16. butterflydreamer
    • one year ago
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    now for the final one. Just multiply both and see which one is correct. So what do you get when you multiply f(x) and g(x) together? \[f(x) \times g(x) = 5x ( 3x - 2) = ?\]

  17. anonymous
    • one year ago
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    would the answer be A?

  18. anonymous
    • one year ago
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    B***

  19. anonymous
    • one year ago
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    not A

  20. butterflydreamer
    • one year ago
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    yes A is correct but have you checked option C or D? Remember that the question says "check all correct answer(s)" :)

  21. anonymous
    • one year ago
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    so A, C and D are the correct answers

  22. anonymous
    • one year ago
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    B*

  23. anonymous
    • one year ago
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    -.-

  24. butterflydreamer
    • one year ago
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    A is correct. C is correct. But what about D?? Note: when you multiply anything by 0, the answer will be 0

  25. anonymous
    • one year ago
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    so D is incorrect

  26. butterflydreamer
    • one year ago
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    yepp :)

  27. anonymous
    • one year ago
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    ty

  28. butterflydreamer
    • one year ago
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    no problemo~

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