1. Assign any two points on the graph. Say points A and B. Find the coordinates of each point. 4 Solution: rm 2 A (5,1) B (7,9) 2. If A is the first point, what is its abscissa (or x)? What about its ordinate (or y.)? Solution: x = 5 Vi = 1 3. If B is the second point, what is its abscissa (or x,)? What about its ordinate (ory,)? Solution: x2 = 7 Y2 = 9 4. What is the difference of the ordinates (or y-coordinates) of points A and B? What about the difference of the abscissas (or x-coordinates) of points A and B? Solution: Y2 - Y1 = 9 - 1 = 8 X2 - x₂ = 7-5=2 5. Compare the difference of the values of y (the ordinates) to the rise on the graph. What have you observe? Solution: Y2 - Y1 = rise asap fleece