1. Pick the location for your line.

• Move the Drawing Pad (use ), but keep the point (0,0) visible.

2. Pick grid points A and B.

• Click on the Point icon.

• Click on any grid point to get point A.

• Click on any grid point with a different x-coordinate to get point B.

• Write down the coordinates of A and B.

3. Check the coordinates.

4. Draw the line.

5. Find the equation of your line: y=mx+b

6. Check your answer!

• Type m (slope) in the box below as as a fraction a/b or as a decimal rounded to 2 decimals.

• Then click on Check Slope.

Slope m is: - - - - - - - - - - - - - - - - - - - -

• Type b (intercept) in the box below.

• Then click on Check Intercept.

The y-intercept b is:

• Click on Reset in top right corner to start over.

LFS , Created with GeoGebra