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2) What is the inverse of the function y = 4x +5?
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14 votes
2) What is the inverse of the function y = 4x +5?

User Anna Melzer
by
5.5k points

1 Answer

7 votes

Answer:


f^(-1)(x)=(1)/(4) x-(5)/(4)

Explanation:

make
x the subject:


y=4x+5

⇒
4x=y-5

⇒
x=(1)/(4) y-(5)/(4)

change y to x:


f^(-1)(x)=(1)/(4) x-(5)/(4)

User Solomon Duskis
by
5.1k points
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