Since this is the result of the second function, hence equations I and II are inverse of each other.
Inverse of a function
Inverse of a function is s a function that serves to undo another function. That is, if f(x) produces y, then putting y into the inverse of f produces the output x.
Given the function f(x) = 3x
Find its inverse
Replace with y with x
y = 3x
x =3y
Make y the subject of the formula
3y = x
y = x/3
Since this is the result of the second function, hence equations I and II are inverse of each other.
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