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anonymous

  • one year ago

Given the following functions f(x) and g(x), solve (f + g)(3) and select the correct answer below: f(x) = 6x + 3 g(x) = x − 7 4 17 25 31

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  1. anonymous
    • one year ago
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    @welshfella

  2. welshfella
    • one year ago
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    (f + g)(x) = 6x + 3 + x - 7

  3. welshfella
    • one year ago
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    simplify the above then replace the x by 3 and work it out

  4. anonymous
    • one year ago
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    I don't know how to simplify :P

  5. welshfella
    • one year ago
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    bring like terms together = 6x + x - 3 + 7 = 7x + 4 now replace the x by 3 and work it out this is your answer

  6. anonymous
    • one year ago
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    So it would be 17?

  7. welshfella
    • one year ago
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    7(3) + 4 = ? not 17

  8. anonymous
    • one year ago
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    25 :D?

  9. anonymous
    • one year ago
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    @welshfella

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