LINKS (help & fun stuff!)

Khan Academy
Instructional videos and practice exercises.

IXL Learning
Educational practice for K-12th graders in MATH, Language Arts, Science, Social Studies, and Spanish.  IXL provides step by step instructions and solutions after incorrectly answering a practice problem. 

VIDEO:  Finding x- and y-intercepts on the Calculator (TI83 TI84); Thomson (up to 3:10)