These four pages can be printed out as page-sized references/notes sheets or enlarged to poster size. This document contains summaries of linear equations, specifically direct variation, point-slope form, standard form, and slope-intercept form. It is helpful to have these posters hanging in your classroom so students can visually see the difference between each type of linear equation. I created this document with the intention of blowing up each page into a poster. If your printer can do this, feel free to make a poster! If your printer can't, you can print out the document and bring it to Kinko's and they can enlarge it to poster-size. These pages can also be used as 8.5x11 handouts to be given to the students as supplemental notes AFTER introductory lessons on each individual form have been taught.