Question

Please help: http://s26.postimg.org/6i5qzkurc/Feb_1.jpg

Which statement correctly compares the rates of change of the two functions?

Function 1's rate of change is 1 foot per year greater than functions 2's rate of change.


Function 1's rate of change is 2 feet per year greater than functions 2's rate of change.


Function 2's rate of change is 1 foot per year greater than functions 1's rate of change.


Funtion 2's rate of change is 2 feet per year greater than function 1's rate of change.