Question

If f(x) = 1/2x-3 and g(x)= 2x+5 what is (g x f) (4)

Answer 1

\[
\begin{split}
(g\times f)(4) &= g(4) \times f(4) \\
&= [2(4)+5] \times [1/2(4)-3]
\end{split}
\]Think you can do the rest?

Answer 2

Also, it matters whether \(f(x) = \frac{1}{2}x-3\) or \(f(x) = \frac{1}{2x}-3\) or even \( f(x) = \frac{1}{2x-3} \)

Answer 3

Thanks so much this was very helpful :) !

Answer 4

Is the answer -13 ?

Answer 5

It depends on which f(x) is correct.