Each of Exercises 11-16 shows the graph of a function y = f(x). Copy the graph and draw in the line y = x. Then use symmetry with respect to the line y = x to add the graph of f- to your sketch. (It is not necessary to find a formula for f.) Identify the domain and range of f-. 1. 12. y y=fx) = 1-.x>0 y= f(x) = x +1 13. 14. y = f(x) = sin x, y = f(x) = tan x, 15. 16. x+1, -1sxs0 f(x) = 0

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