1. Find the slope of the straight line through the given pairs of points: (−2,6) and (−2,4)

2. Multiply the slopes of the lines through the given pairs of points:
(3,3) and (1,4)
(−7,3) and (−5,7)

3. The slopes of the lines through the given pairs of points are the same, find that slope:
(−2,5) and (3,−4)
(−1,−6) and (−6,3)

4. The slopes of the lines through the given pairs of points are the same, find that slope:
(4,8) and (−2,3)
(13,1) and (7,−4)