Answer:
1: m = 2
2: m = -1
3: m = 7/8
4: m=0
Explanation:
Before I begin, ALWAYS REMEMBER, the slope formula is:
y2 - y1 / x2 - x1 = slope
1:
(4,4) (6,8)
y2: 8
y1: 4
x2: 6
x1: 4
8-4 / 6-4 = 4/2 = 2
2:
(6,1) (4,3)
y2: 3
y1: 1
x2: 4
x1: 6
3-1 / 4-6 = 2/-2 = -1
3:
(4,1) (12,8)
y2: 8
y1: 1
x2: 12
x1: 4
8-1 / 12-4 = 7/8
4:
(8,3) (8,2)
y2: 2
y1: 3
x2: 8
x1: 8
2-3 / 8-8 = -1/0 = 0
Really hope I helped! Have a good day!