Question: Verify that f(f (x)) = x and f-(f(x)) = x. 7. f(x) = 6x 8. f (x ) = 3x 9. f ( x) =

Verify that f(f (x)) = x and f-(f(x)) = x. 7. f(x) = 6x 8. f (x ) = 3x 9. f ( x) = x +9 10. f(x) = x 11. f(x) = 3x + 1 12. f(x) = -2x - 9 4x + 7 13. f(x ) = * - 1 14. f(x) = 5 2 15. f(x) = 3 X 16. f(x) = x

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