Questions for Sketchpad Activity Y=mx+b


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  1. For what values of m is the graph of y=mx+b steeper than the graph of y=x.


  2. For what values of m is it less steep?


  3. For what value(s) of m do the two graphs coincide?


  4. For what values of m does the graph rise from left to right?


  5. For what values of m does the graph fall from left to right?


  6. For what value(s) of m does the graph of y=mx+b appear to be perpendicular to the graph of y=x.


  7. Where does the graph of y=x intersect the x-axis? the y-axis?


  8. Where does the graph of y=mx + 0 intersect the x-axis? the y-axis?


  9. How does the graph of y=mx+b compare to the graph of y=x when b=0?


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The Math Forum is a research and educational enterprise of the Drexel University School of Education.The Math Forum is a research and educational enterprise of the Drexel University School of Education.

Ruth Carver * * ruth@mathforum.org * * 26 September 1995