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selection task 1
Author:
Arthur Lee
找出平行線，把它們移到右邊。
GeoGebra
New Resources
Graph of y = ax² + bx + c
Trefoil Knot
apec
Graphical solution of ax² + bx + c = k
Traffic Cone
Discover Resources
The Linear Function f(x)=mx+b
circle theorems
DC 2015
Limit of absolute value function
Activity #8__the "Segment with a Given Length" tool
Discover Topics
Addition
Functions
Correlation
Pythagoras or Pythagorean Theorem
Set Theory