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anonymous

  • one year ago

Given the following functions f(x) and g(x), solve f over g(−3) and select the correct answer below: f(x) = 6x + 8 g(x) = x − 2 −2 −negative one half one half 2

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  1. anonymous
    • one year ago
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    1 Find the Greatest Common Factor (GCF) 1. What is the largest number that divides evenly into 6x and 8? 2 2. What is the highest degree of x that divides evenly into 6x and 8? None, x is not in every term 3. Multiplying the results above, the GCF is 2 GCF=2 2 Factor out the GCF 1. Put the GCF as the first term 2. Then, in parentheses, divide each term by the GCF 2(6x2+82) 3 Simplify each term in parentheses 2(3x+4)

  2. anonymous
    • one year ago
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    \[\frac{ f }{g }(x)=\frac{ f(x) }{ g(x)}=\frac{ 6x+8 }{ x-2}\] Plug in -3 for x

  3. anonymous
    • one year ago
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    so B?

  4. anonymous
    • one year ago
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    how did you get that?

  5. anonymous
    • one year ago
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    i did 6(-3)+8 ----------- -3-2

  6. anonymous
    • one year ago
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    right. and when you simplified the numerator?

  7. anonymous
    • one year ago
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    well i got -10 ------ -5 which equals -2

  8. anonymous
    • one year ago
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    -10/-5 = 2

  9. anonymous
    • one year ago
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    what about this one? Given the functions k(x) = 5x − 8 and p(x) = x − 4, solve k[p(x)] and select the correct answer below. k[p(x)] = 5x − 12 k[p(x)] = 5x − 28 k[p(x)] = 5x2 − 12 k[p(x)] = 5x2 − 28

  10. anonymous
    • one year ago
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    @peachpi can you help?

  11. anonymous
    • one year ago
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    k(p(x)) means you substitute p(x) for the x in k(x) |dw:1434122396481:dw|

  12. anonymous
    • one year ago
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    so i do 5(x-4)-4?

  13. anonymous
    • one year ago
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    yes

  14. anonymous
    • one year ago
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    oh k(x) was 5x - 8 so when you substitute its 5(x-4)-8

  15. anonymous
    • one year ago
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    but i dont solve i pick a equation. i think its D

  16. anonymous
    • one year ago
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    distribute and simplify 5(x-4)-8

  17. anonymous
    • one year ago
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    distribute the 5?

  18. anonymous
    • one year ago
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    yes

  19. anonymous
    • one year ago
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    is it B?

  20. anonymous
    • one year ago
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    yes

  21. anonymous
    • one year ago
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    for this word problem i got D just trying to make sure its right Dishwashers are on sale for 25% off the original price (d), which can be expressed with the function p(d) = 0.75d. Local taxes are an additional 14% of the discounted price, which can be expressed with the function c(p) = 1.14p. Using this information, which of the following represents the final price of a dishwasher with the discount and taxes applied? c(p) ⋅ p(d) = 0.855pd c(p) + p(d) = 1.89d c[p(d)] = 0.855d d[c(p)] = 1.89p

  22. anonymous
    • one year ago
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    @peachpi

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