Someone i am so bad at point slope stuff

1) write the point-slope form of the equation of the horizontal line that passes through the point (2, 1).

2)write the point-slope form of the equation of the line that passes through the points (6, -9) and (7, 1).

3) a line passes through the point (-6, 6) and (-6, 2). in two or more complete sentences, explain why it is not possible to write the equation of the given line in the traditional version of the point-slope form of a line.

4)write the point-slope form of the equation of the line that passes through the points (-3, 5) and (-1, 4).

5) write the point-slope form of the equation of the line that passes through the points (6, 6) and (-6, 1).

6) write the point-slope form of the equation of the line that passes through the points (-8, 2) and (1, -4).

7) write the point-slope form of the equation of the line that passes through the points (5, -9) and (-6, 1).

1) Write the point-slope form of the equation of the horizontal line that passes through the point (2, 1). y = 1/2x

2)Write the point-slope form of the equation of the line that passes through the points (6, -9) and (7, 1). 
m = (-9 - 1) / (6 - 7) = -10/-1 = 10
y + 9 = 10 (x - 6)
y = 10x - 69

3) A line passes through the point (-6, 6) and (-6, 2). In two or more complete sentences, explain why it is not possible to write the equation of the given line in the traditional version of the point-slope form of a line. 

4)Write the point-slope form of the equation of the line that passes through the points (-3, 5) and (-1, 4).
m = (5 - 4) / (-3 - -1) = 1/-2
y - 5 = (-1/2) (x +3)
y = (-1/2)x + 7/2

5) Write the point-slope form of the equation of the line that passes through the points (6, 6) and (-6, 1).
m = (6-1)/(6 - -6) = 5 / 12
y - 6 = (5/12) (x-6)
y = (5/12)x + 17 / 2

6) Write the point-slope form of the equation of the line that passes through the points (-8, 2) and (1, -4).
m = (2 - -4)  / (-8 -1) = 6 / -7
y - 2 = (-6/7) (x + 8)
y = (-6/7)x - 50 / 7

7) Write the point-slope form of the equation of the line that passes through the points (5, -9) and (-6, 1).
m = (-9 - 1) / (5 - -6) = -10 / 11
y + 9 = (-10 / 11) (x - 5)
y = (-10 / 11)x -49/11

1.3 and 1 1/3 are both closest to 1. hope this ; )

The correct answer is -4