Coordinate Geometry

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Coordinate geometry

An applet and worksheet including notes on the straight line and its equation.	mathsinsite
Various forms of the equation of a straight line	cut-the-knot.org
Play around with the straight line	mathsisfun.com
Investigate parallel and perpendicular lines	explorelearning.com
A lesson on parallel and perpendicular lines	homeschoolmath.net
Notes on the equations of parallel and perpendicular lines	purplemath.com
The mid-point of a line	And even more from mathsnet!