5. Consider the function f : (R, T) (R,T) where x-1. if x 3 f(x) =...

 

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5. Consider the function f : (R, T) (R,T) where x-1. if x 3 f(x) = (x+5) if x >3. Prove or disprove: f is open. 5. Consider the function f : (R, T) (R,T) where x-1. if x 3 f(x) = (x+5) if x >3. Prove or disprove: f is open.