Straight LineYou are currentlybrowsing as guest. Click here to log in |
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From the old English "stretched linen" suggesting its origins whereby a piece of string is stretched, chalked and flicked thereby leaving a shadow in chalk of the string in the form of a straight line.
The first two axioms (or postulates) of Euclidian geometry concern straight line segements.
1. A straight line segment can be drawn joining any two points.
2. Any straight line segment can be extended indefinitely in a straight line.
The equation of a straight line in cartesian coordinates is $ax+by=c$
A common transformation of this is $y=mx+c$
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