How do you graph a Tangent/cot function?? Does anyone know a site where I could find information on PreCal curriculum? Does anyone mind explaining to me how to graph a Tan/cot function? I get all the other trig function graphs, just not this one. How do you find the period? I'm confused about where to put the asymptotes when you have a "b" change in the number that is in front of "x". Thanks a lot!