1. a. Gradient =1

b. Gradient = -2

c. Gradient = 0

d. Gradient = 2/3

2. Gradient of line A = -3

Gradient of line B = 0

Gradient of line C = 5 / 8

Gradient of line D is undefined

Gradient of line E = -1 / 5

Gradient of line F = 2

3. a. Gradient = -1

b. Gradient = 3 / 7

c. Gradient = 2

d. Gradient is undefined

e. Gradient = -7 / 4

f. Gradient = 0