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PLEASE HELP

Which of the following is the inverse of f(x)=3-x/5

PLEASE HELP Which of the following is the inverse of f(x)=3-x/5-example-1
User Hkhalifa
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1 Answer

4 votes

Answer:

f^-1(x) = 3 - 5x, second option

Explanation:

To determine the inverse simply interchange the variables and solve for y;

f(x) = 3 - x / 5 -> Interchange the variables

x = 3 - y/5 -> Multiply either side by 5

5x = 3 - y -> Subtract three from either side

- y = 5x - 3 -> Divide either side by - 1

y = - 5x + 3

Your solution is f^-1(x) = 3 - 5x

User Davidkonrad
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