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4 votes
Aswer this question thats in the pic

Aswer this question thats in the pic-example-1

2 Answers

5 votes

Answer:


\textsf{d.}\quad f(g(x))=5x-15


\textsf{b.}\quad g(f(x))=5x-3

Explanation:

A composite function is when a new function is created by applying one function's output as the input for another function.

In the case of f(g(x)), substitute the output of function g(x) as the input of function f(x). In other words, replace the x-variable of function f(x) with function g(x).


\begin{aligned}f(g(x))&=f(x-3)\\&=5(x-3)\\&=5x-15\end{aligned}

Similarly, to find g(f(x)), replace the x-variable of function g(x) with function f(x):


\begin{aligned}g(f(x))&=g(5x)\\&=(5x)-3\\&=5x-3\end{aligned}

Therefore, the solutions are:


f(g(x))=\boxed{\textsf{d.}\;\;5x-15}


g(f(x))=\boxed{\textsf{b.}\;\;5x-3}

User InPursuit
by
8.5k points
0 votes

Answer:


\sf f(g(x)) = d.\boxed{5x - 15}


\sf g(f(x)) =b.\boxed{ 5x - 3}

Explanation:

Given:

  • f(x) = 5x
  • g(x) = x - 3

To find:

  • f(g(x))
  • g((f(x))

Solution:

To find f(g(x)), we need to substitute g(x) into f(x).

f(g(x)) = f(x - 3)

Now, substitute x-3 in x of f(x), we get

= 5(x - 3)

Simplify:

= 5x - 15


\hrulefill

To find g(f(x)), we need to substitute f(x) into g(x).

g(f(x)) = g(5x)

Now, substitute 5x in x of g(x), we get

= 5x - 3

Therefore,


\sf f(g(x)) = d.\boxed{5x - 15}


\sf g(f(x)) =b.\boxed{ 5x - 3}

User Metafaniel
by
8.2k points