Final answer:
The correct expression for the difference quotient is: (f(x+h)-f(x))/h.
Step-by-step explanation:
The difference quotient is a mathematical expression that represents the average rate of change of a function over a small interval. It is calculated by subtracting the value of the function at two points, dividing by the difference in the x-coordinates, and taking the limit as the interval approaches 0. The correct expression for the difference quotient is:
a) (f(x+h)-f(x))/h