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Find the inverse function of f(x)=4x-8
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8 votes
Find the inverse function of f(x)=4x-8

User Parris
by
3.7k points

1 Answer

6 votes

Answer:

f^-1(x)=1/4x+2

Explanation:

y=4x-8

change x and y

x=4y=8

switch sides

4y-8=x

add 8

4y=x+8

divide both sides by 4

y=1/4x+2

substitute f^-1(x) for y

f^-1(x)=1/4x+2

User Jugal K Balara
by
4.0k points
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