coordinate geometry
the defination of geometry
in classical mathematics,analytic geometry, also know as coordinate geometry
or Cartesian geometry is the study of geometry using a coordinate system. this
contrasts synthetic geometry.
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information
Rene Descartes applied algebraic principles to geometric situations also refered to as analytic geometry coordinate geometry proofs employ the use of formulas such as the distance formula the slope formula
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notes
example
Problem
abc with A (0,0), B (2,3),and C (4,0)
Formula
used distance
show ur work
The triangle is isosceles because it has two congruent sides
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When developing a coordinate geometry proof:
1. draw and label the graph
2. state the formulas you will be using
3. show ALL work (if you are using your graphing
calculator, be sure to show your screen displays as
part of your work.)
4. have a concluding sentence stating
what you have proven and why it is true.