Slope-Intercept Form

Observe what happens as you move the two sliders. Please answer the questions to the right.

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Athena Matherly, November 6, 2006, Created with GeoGebra





  1. Leave m as 1 and move b. Explain how the line is changing. Explain how the equation is changing.
  2. Leave b as 1 and move m. Explain how the line is changing. Explain how the equation is changing. 
  3. Explain the direction of the line when m is positive or negative.
  4. What type of line do you see when m=0?
  5. What conclusions can you make about the variables m and b?

Try the next worksheet about Point-Slope Form