1. Generate a line: Click on the New Line button.
• Click on the Move Drawing Pad icon 
if you don't see the line properly 
! Then click anywhere by the line and drag it into a position you want.
2. Choose 2 points on the line. Look for 2 points on the grid. Move the Drawing Pad again if necessary.
• Click on the Point icon. 
• Click on the line. You will get point A on the line.
• Click on the line again. You will get point B on the line.
• Click on Check Points.
3. Find the coordinates of A and B.
• Write these down.
4. Find the slope of the line.
• Find the change in the y-values: Δy = y(B)-y(A).
• Find the change in the x-values: Δx = x(B)-x(A).
• Find the slope: Δy / Δx. It should be a whole number.
5. Check your answer!
• Type the value of your slope in the box below.
• Then click on Check Answer.
• Click on Reset to start over.