Copy of Parallel Lines and their Gradients
In thiis activity, you will see the relationship between 2 parallel lines and their gradients
For simplicity the equations of the lines you draw have already been given automatically.
Drag points A, B for the first line and points CD for the second line.
Observe the changes in angles alpha and beta.
How do you make both lines parallel ? (Recall your knowledge of corresponding angles of parallel lines)
Observe the gradient of line AB, ie. m1 and gradient of line CD ie m2
Are they the same when the lines AB and CD are parallel?