im new so excuse the relavie easy ness of this question. i typed >plot(1/7-5*(sin(x)),-10..10,-10..10); then Warning, unable to evaluate the function to numeric values in the region; see the plotting command's help page to ensure the calling sequence is correct and an empty graph comes up i looked on the help page but i dont really understand it, i was hoping mapleprimes can help??? once again sorry for the easyness of the question!!!