GeoGebra
GeoGebra
Home
News Feed
Resources
Profile
People
Classroom
App Downloads
Slopes of Parallel Lines
Author:
Anthony OR 柯志明
Drag the red point to make the two lines parallel. What is the relation of the slopes of parallel lines?
GeoGebra
Anthony Or GeoGebra Institute of Hong Kong
New Resources
Graphing Logarithmic Functions
Oriented Angles and the Unit Circle
Woven
Divisible Polynomials - Remainder and Factor Theorems
Is it Isosceles?
Discover Resources
The Second Derivative
Unit circle and Sine curve
Perpendicular Bisectors of a Triangle
Construction project
Solomon_Period4_Translations
Discover Topics
Integers
Limits
Similarity Transformation or Similarity
Angles
Special Points