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Author:
Keith W. Davis
,
keithwdavis
GeoGebra
New Resources
Explore the invariant lines of matrix {{-2,5},{6,-9}}
Parallelograms: Quick Investigation
Finding Average Rate of Change of a Function
Poorly Drawn Parallelograms 3
探究由平行線和截線所成的角
Discover Resources
Centroid of a Triangle
Invest2: Do Rectangle Diagonals Have Special Properties? Pt4
Work as a Piecewise Function
Unsolving0
Two DynaGraphs Modified
Discover Topics
Equations
Similarity Transformation or Similarity
Cosine
Means
Orthocenter