Question
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? (c) Find the function f.
Use your result to verify your answer to part (b).
91. f(x)
92. f(x)
x +3

Image Transcription

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? (c) Find the function f. Use your result to verify your answer to part (b). 91. f(x) 92. f(x) x +3

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