SOLUTION: The given function is {{{f(x)=20000-15x}}} Find {{{f^(-1)(50)}}}

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Question 128590: The given function is


Find

Answer by jim_thompson5910(35256)   (Show Source): You can put this solution on YOUR website!
Start with the given function


To find , simply swap x and f(x) to get




Add 15f(x) to both sides


Subtract x from both sides


Divide both sides by 15 to isolate f(x)


So the inverse function is


Now plug in


Subtract


Divide

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