The depth of a river changes after a heavy rainstorm. Its depth, in feet, is modeled as a function of time in hours. Consider this graph of the function. Image What is the average rate of change for the depth of the river, measured as feet per hour, between hour 9 and hour 18? Show your work.

a = 11 : 4

b = 38

c = 1 for every 6

7.25

step-by-step explanation:

we know that 7 equals to 7.0. we also know that 1/4=0.25. so we can add the two together and we get 7.25

one set of data has more variation than the other. hope this !

i believe it is 0.1m because the measurement of 30.4m limits how precise you can be

you can only be as precise as the least precise measurement