This two page study guide is a ton of information students need to know to understand functions. You can have it as a reference sheet or you can cut up the sections and use them at specific stations.Topics include:function vocab, vertical line test, linear vs. nonlinear, direct variation, mapping diagrams, domain and range, slope-intercept form, point-slope form. About 90% of the study guide is filled in already, with some graphs for either you or your students to fill out. Check out my Function