Hi everyone, I'm Alejandro. And todayI will talk about exponential fuctions
Today is 20 of april and the name of this topic is "Introduction to exponential functions"
Exponential functions are uniquely characterized by the fact that the growth rate of such a function (that is, its derivative) is directly proportional to the value of the function.
And this is its formulaf(x)=abx
Where b is a positive real number, and in which the argument x occurs as an exponent
The domain of exponential functions is all real numbers. The range is all real numbers greater than zero.
Imagine $4000 is invested at 6% interest compounded annually; we want to know how much money we have in five years.
Your formula is y = 4000 (1.06)xThe x is the years that passed
The exponential function - Math Insight. (n.d.). Retrieved April 20, 2020, from https://mathinsight.org/exponential_functionSparkNotes: Exponential and Logarithmic Functions: Exponential Functions. (n.d.). Retrieved April 20, 2020, from https://www.sparknotes.com/math/precalc/exponentialandlogarithmicfunctions/section1/
The population of a town is estimated to increase by 15% per year. The population today is 20 thousand.