The difference quotient is used to determine the average rate of change of g(x) = 5x2 + 6x on the interval from x = 1 to x = 5. Which statement describes the process correctly? The difference quotient is 10x + 5h, so the average rate of change is 10(1) + 5(4) = 30. The difference quotient is 10x + 5h, so the average rate of change is 10(1) + 5(5) = 35. The difference quotient is 10x + 5h + 6, so the average rate of change is 10(1) + 5(4) + 6 = 36. The difference quotient is 10x + 5h + 6, so the average rate of change is 10(1) + 5(5) + 6 = 41.