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**rate of change**is a

**rate**that describes how one quantity

**changes**in relation to another quantity. If x is the independent variable and y is the dependent variable, then.

**rate of change**=

**change**in y

**change**in x.

Thereof, how do you determine the rate of change?

Understanding **Rate of Change** (ROC) The **calculation** for ROC is simple in that it takes the current value of a stock or index and divides it by the value from an earlier period. Subtract one and multiply the resulting number by 100 to give it a percentage representation.

**constant rate of change**is a

**rate of change**that stays the same and does not

**change**.

Consequently, what is the rate of change of a function?

The units on a **rate of change** are “output units per input units.” The average **rate of change** between two input values is the total **change** of the **function** values (output values) divided by the **change** in the input values.

Suppose that you are at a red light, and then the light turns green. You put your foot on the accelerator and the car increases its speed from 0 mph to 50 mph in 5 seconds. Then the average **rate of change** of your speed is 50 mph divided by 5 seconds.