Distance formula
Midpoint formula
Gradient and Slope 1
Gradient and Slope 2
The connection between Algebra and Coordinatesystem
Parallel lines and Perpendicular lines
Graphing lines 1
Note: That Khan Academy uses y=mx+b intead of y=mx+c that we use in the Pre-ib course.
Graphing lines 2
Gradient y-intercepts and General form / Standard form
- Khan does not use the same names as our book uses.