Monotonic transformation

Posted by RS on Mar 19, 2015; 5:42pm
URL: http://discussion-forum.276.s1.nabble.com/Monotonic-transformation-tp7595960.html

Please discuss. Give reasons
Which of the following are monotonic transformations? (1) u = 2v −13;
(2) u = −1/v^2; (3) u = 1/v^2; (4) u = lnv; (5) u = −e^−v; (6) u = v^2;
(7) u = v^2 for v > 0; (8) u = v^2 for v < 0.