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F(x)=8x+14 and g(x)=5x-8(f o g)(2)=?

User Adamwy
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1 Answer

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Given the functions:


\begin{gathered} f(x)=8x+14 \\ g(x)=5x-8 \end{gathered}

1. You need to substitute the function g(x) into the function f(x), in order to find:


(f\circ g)(x)

Then:


(f\circ g)(x)=8(5x-8)+14

2. You need to substitute this value of "x into the function:


x=2

And then evaluate, in order to find:


(f\circ g)(2)

You get:


(f\circ g)(2)=8(5(2)-8)+14
(f\circ g)(2)=8(10-8)+14
(f\circ g)(2)=8(2)+14
(f\circ g)(2)=16+14
(f\circ g)(2)=30

Hence, the answer is:


(f\circ g)(2)=30

User Sarfaraz Nawaz
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