Finding the Slope of a Line
How is the slope of a line connected to the position and the direction of the line?
Use the applet below to find out!
INSTRUCTIONS:
Move points A and B to change the position and the direction of the line.
Notice how the slope fraction changes, and think about the following questions:
1. What part of the graph determines the change in the numerator of the fraction?
2. What part of the graph determines the change in the denominator of the fraction?
3. When is the slope negative?
4. Is the slope ever zero?