Graphing Systems of Linear Equations
Directions:
1. Plot the following lines by using the sliders above labeled as slope and y-intercept. Then state the solution for each of these equations
   a.  y=2x+3
       y=3x+2
   b. y=-4x+5
       y=8x-1
   c. y=-2x-2
      y= -x +1
2. Move around the sliders on your own. What must happen in order for there to be no intersection points, or for there to be no solution to the system?