2. What is the composition f(g(x)) and the inverse of the composite (fog) given f(x) = 2x + 3 and g(x) = x-5?​

Question

2. What is the composition f(g(x)) and the inverse of the composite (fog)
given f(x) = 2x + 3 and g(x) = x-5?​

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Jezebel 3 years 2021-07-17T23:11:11+00:00 1 Answers 11 views 0

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  1. Calantha
    0
    2021-07-17T23:12:38+00:00
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    Answer:

    f(g(x)) = 2x – 7

    g(f(x)) = 2x – 2

    Step-by-step explanation:

    basically, you just want to plug in the g(x) function wherever you see an x in the f(x) function

    f(g(x)) = 2(x – 5) + 3

             = 2x – 10 + 3

             = 2x – 7

    the inverse function is doing the same thing but plugging in f(x) wherever you see an x in the g(x) function

    g(f(x)) = (2x + 3) – 5

             = 2x + 3 – 5

             = 2x -2

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )