Problem 4 For the following exercises, for each pair of points, a. find the slope of the line passing through the points and b. indicate whether the line is increasing, decreasing, horizontal, or...

Extracted text: Problem 4 For the following exercises, for each pair of points, a. find the slope of the line passing through the points and b. indicate whether the line is increasing, decreasing, horizontal, or vertical. (-2, 4) and (1, 1) (-1, 4) and (3, -1) (3, 5) and (-1, 2) (6, 4) and (4, -3) (2, 3) and (5, 7) (1, 9) and (-8, 5) (2, 4) and (1, 4) (1, 4) and (1, 0)