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Mandy86

  • 3 years ago

For the given functions f and g , find the indicated composition. f(x) = 3x + 9, g(x) = 5x - 1 (fg)(x) A) 15x + 12 B) 15x + 8 C) 15x + 6 D) 15x + 44

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  1. swissgirl
    • 3 years ago
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    ok so another way to look at this is f(g(x)) Our x variables get replaced with g(x) f(5x-1) So you replace your x variables in f(x) with 5x-1

  2. swissgirl
    • 3 years ago
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    f(5x-1)=3(5x-1)+9

  3. Mandy86
    • 3 years ago
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    OH thats right I was trying to disturbte them

  4. Mandy86
    • 3 years ago
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    thank you!

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