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6 August, 15:05

Given the functions f (x) = 7x + 13 and g (x) = x + 2, which of the following functions represents f[g (x) ] correctly?

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  1. 6 August, 16:26
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    f[g (x) ] = 7x + 27

    Step-by-step explanation:

    g (x) = x + 2,

    f (x) = 7x + 13,

    f[g (x) ] means you substitute the value of g (x) into the variable of f (x);

    Which is 7 (x+2) + 13 = 7x + 14 + 13

    = 7x + 27
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