The inverse is usually shown by putting a little -1 after the function name, like this: f-1 (y) We say f inverse of y So, the inverse of f(x) = 2x+3 is written: f-1 (y) = (y-3)/2 (I also used y instead of x to show that we are using a different
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The inverse function calculator finds the inverse of the given function. If f (x) f ( x) is a given function, then the inverse of the function is calculated by interchanging the variables and
STEP ONE: Rewrite f (x)= as y=. If the function that you want to find the inverse of is not already expressed in y= form, simply replace f (x)= with y= as follows (since f (x) and y both mean the same thing: the output of the function):
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