22. (a) From its graph, we see the maximum height of the tent map occurs at x = 1/2, hence is s/2.

(b) From its graph, the nonzero fixed point occurs to the right of x = 1/2.
Consequently, it is a solution of x = _{n+1} = _{n})_{n} > 1/2.)
Solving for x gives the value x_{f} =

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