Answers
1. 1
2. 1/2
3. 3
4. 1/4
5. -1/4
Step by step
Gradient is slope or rise over run, or change in y over change in run (y2-y1 over x2 - x1)
1. 3/3 = 1
2. 2/4 = 1/2
3. 6-3 over 2-1 = 3/1 or 3
4. 1 - -1 over 4 - -4 = 2/8 or 1/4
5. 1 - 2 over 2 - -2 = -1/4