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Find the inverse of the function f(x) = 2x – 4.

User Neok
by
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2 Answers

7 votes
Hey there!

Your question states: Find the inverse of the function f(x) = 2x – 4

→ We need to remember that when finding the
inverse of a function, this would mean that we would find the complete opposite of the whole expression listed above.



solve \ 2x-4= y \ for \ x

Substitute

y=x

Your correct answer would be
\boxed{ (x+2)/(2) }

Hope this helps.
~Jurgen
User Vivin
by
8.0k points
5 votes
f(x) = 2x – 4
inverse
x = 2y - 4
2y = x + 4
y = x/2 + 2

answer
inverse
f-1(x) =
x/2 + 2
User Fernando Morales
by
8.1k points

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