For your Geometry needs:

http://www.regentsprep.org/Regents/math/geometry/math-GEOMETRY.htm     

Equation of a Line

http://www.terragon.com/tkobrien/algebra/topics/equationofline/equationofline.html

Solving Algebra(ic) Word Problems

http://www.onlinemathlearning.com/algebra-word-problems.html