See the UBC wiki help pages about how to add pictures and how to upload files. The convention that we will use is to have these images have a long but similar name to the page they will be used for. Say you want to add a picture to your solution of question 1 (a) of the April 2009 exam of MATH101. The question page is at the address:
Then the picture material for that question (for hints, questions, solutions etc.) should be all uploaded under the path:
where you can change picture_1 to anything you want and the .png has to match the type of the file you are uploading.
Note that when writing the name of the file, you don't write the File: part, the upload will do it on its own, so when in the upload page, when asked for the new filename, just write: