How does the graph of the line change when the y-intercept changes from positive to negative? From negative to positive?[br]
How do the signs of the rise and run affect the graph of the line?
How does the steepness of the line change when the rise gets closer to 0? When the run approaches 0?
What happens when only the rise is 0?
What happens when the run is 0?
Set the sliders for both the rise and the run to 0. What do you notice? How can you explain these results?