I can find equations of lines.
Play theseĀ games on Slope-Intercept Form
http://www.math-play.com/slope-intercept-game.html
http://hotmath.com/hotmath_help/games/kp/kp_hotmath_sound.swf
http://www.ixl.com/math/algebra-1/write-an-equation-for-a-parallel-or-perpendicular-line
http://www.ixl.com/math/algebra-1/standard-form-graph-an-equation