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To find the inverse of a function, you have to switch y for x and then solve for y again. These are the steps:

y = 5x - 20

x = 5y - 20

5y = x + 20

y = 0.2x + 4 or f(x)^-1 = 0.2x + 4

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8y ago
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8y ago

f'(x) = x/5 + 4

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Q: What is the inverse function for f(x)5x-20?
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What is the relationships between inverse functions?

The inverse of the inverse is the original function, so that the product of the two functions is equivalent to the identity function on the appropriate domain. The domain of a function is the range of the inverse function. The range of a function is the domain of the inverse function.


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