Find the slope of the line through the points: `(6, 3) and (9, 3)`

Find the slope of the line through the points: (0, 9) and (-3, 0)

Find the slope of the line through the points: (3, -2) and (3, 4)

Find the slope of the line through the points: (1, 2) and (4, 2)

Find the slope of the line through the points: (3, -2) and (7, -2)

Find the slope of the line through the points: (3, -2) and (-1, 4)

Find the slope of the line through the points: (0, -4) and (-6, 2)

Find the slope of the line through the points (4,-6)(-2,-5)

Find the slope of the line passing through the points (3, 4) and (1, 2). Also find its equation.

Determine 'a' so that 1/2, is the slope of the line through the points (5,2) and (3,a)

Find the slope of the line passing through the points A (-2, 3) and B (2,7). Also find the inclination of the line AB.