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anonymous

  • one year ago

Given the functions f(x) = 10x + 25 and g(x) = x + 8, which of the following functions represents f[g(x)] correctly? A)f[g(x)] = 10x + 33 B)f[g(x)] = 10x2 + 33 C)f[g(x)] = 10x + 105 D)f[g(x)] = 10x2 + 105

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  1. anonymous
    • one year ago
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    @chrisdbest

  2. welshfella
    • one year ago
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    to find f((g)x)0 replace the x in f(x) by g(x) and simplify

  3. welshfella
    • one year ago
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    this is 10(x + 8) + 25 - now simplify

  4. anonymous
    • one year ago
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    WAIT

  5. anonymous
    • one year ago
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    105?

  6. welshfella
    • one year ago
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    10x + 105

  7. anonymous
    • one year ago
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    115

  8. welshfella
    • one year ago
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    115? no you cannot add 10x and 105 because they are different terms 10 oranges plus 105 apples = 10 oranges + 105 apples NOt 115 oranges or 115 apples

  9. welshfella
    • one year ago
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    the correct option is 10x + 105

  10. welshfella
    • one year ago
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    |dw:1436465860253:dw|

  11. welshfella
    • one year ago
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    - you can add the 80 and the 25 because they are both numbers 10x is 'a term in x' and cant be added to a number

  12. anonymous
    • one year ago
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    SO

  13. anonymous
    • one year ago
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    OH WAIT, the answer its C? IM RIGHT

  14. anonymous
    • one year ago
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    @welshfella are you there?

  15. anonymous
    • one year ago
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    @SurpriseBreeze

  16. welshfella
    • one year ago
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    yes

  17. welshfella
    • one year ago
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    C is correct

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