Final answer:
The ratio f(x + h) - f(x) divided by h is known as the difference quotient. It is used to approximate the derivative of a function at a certain point.
Step-by-step explanation:
Calculus is a branch of mathematics that focuses on the study of rates of change and processes of accumulation. It is divided into two main branches: differential calculus and integral calculus.
The ratio f(x + h) - f(x) divided by h is known as the difference quotient. It is used to approximate the derivative of a function at a certain point. The difference quotient measures the average rate of change of the function over a small interval as the interval gets infinitely small.