y 10- 65552SLECH F 1 2 3 4 5 6 7 8 9 10 What is the gradient of the blue line? X

Step-by-step explanation:
it is the ratio of y change / x change.
when we look at the points with integer coordinates, we see that whenever x increases by 1 unit, y increases by 2 units.
so, the gradient is
+2/+1 = 2/1 = 2