Question

Slope (M)= rise/run=y/x=(y2-y1)/(x2-x1)

1a. (1,2) and (7,9)
1b. (5,-1) and (0,3)
1c. (12,5) and (9,8)

Answer 1

1a. 7/6

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1b. -4/5

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1c. -1

Answer 2

1a. 7/6

1b. -4/5

1c. -1

Explanation:

1a. 9-2/7-1 = 7/6

1b. 3--1/0-5 = 4/-5 = -4/5

1c. 8-5/9-12 = 3/-3 = -3/3 = -1