For which function is f(x) not equal to f -1(x)?
1 answer:
A function and its inverse are mirror images of each other across the line y=x. Since you want the function to be its own inverse, you want the function to have symmetry about the line y=x. All of these functions have that symmetry except ...
... c. f(x) = 2x
In the attached graph, the purple line shows no symmetry about y=x.
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The form of quadratic representing the roots can be expressed as,
Where p and q are the roots of the equation.
The form which represents the zeroes of function h is,
Where 2 and -2 are the roots of the function h(x).
Thus, option (B) is correct.