Function, in math, is an articulation, rule, or regulation that characterizes a connection between one variable (the independent factor) and another variable (the dependent variable). The function is universal in math and is fundamental for figuring out actual connections in technical studies. One of the biggest things in functions is The rate of change which is the speed at which variable changes over a specific period of time.

One of the many ways we use rate of change is population growth is the expansion in the number of individuals in a populace. Worldwide human population growth adds up to around 83 million yearly or 1.1% each year. The worldwide populace has developed from 1 billion out of 1800 to 7.9 billion out of 2020

The way you would calculate the rate of change for population growth is A general formula for calculating the population growth rate is Gr = N / t. Gr is the growth rate measured in individuals, N is the change in population, and t is the period of time.

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