kongayle4 kongayle4
  • 25-01-2018
  • Mathematics
contestada

If f(x)=5x, what is f^-1 (X)

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Louli
Louli Louli
  • 25-01-2018
Answer:
f^-1(x) = x/5

Explanation:
 To get the inverse of the function, we will follow these steps:
1- Substitute f(x) with y. Therefore:
    f(x) = 5x will be written as:
    y = 5x
2- Swap the x and y. This means that:
    y = 5x will be written as:
    x = 5y
3- Solve for y to get the inverse function as follows:
    x = 5y
    x/5 = y
4- Substitute the y with f^-1(x). Therefore:
    y = x/5 will be written as:
    f^-1(x) = x/5

Hope this helps :)
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