91-92 - Functions That Are Their Own Inverse If a function f is its own inverse, then the graph of f is symmetric about the line y = x. (a) Graph the given function. (b) Does the graph indicate that f and f are the same function? (e) Find the function f. Use your result to verify your answer to part (b). 91. f(2) = - x +3 92. f(x) =
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91–92 ■ Functions That Are Their Own Inverse If a function f
is its own inverse, then the graph of f is symmetric about the line
y x. (a) Graph the given function. (b) Does the graph indicate
that f and f 1
are the same function? (c) Find the function f 1
.
Use your result to verify your answer to part (b).
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