Answer:
1
Explanation:
Start at any point on the line, for example (0, 1).
Each unit up correspond to a unit right. The next easy to read point going up to the right is (1, 2).
difference in y: 2 - 1 = 1
difference in x: 1 - 0 = 1
gradient = (difference in y)/(difference in x) = 1/1 = 1