# What are exponential and logarithmic functions used for?

## What are exponential and logarithmic functions used for?

Three of the most common applications of exponential and logarithmic functions have to do with interest earned on an investment, population growth, and carbon dating.

## What is the application of exponential function?

Exponential functions are used to model populations, carbon date artifacts, help coroners determine time of death, compute investments, as well as many other applications. We will discuss in this lesson three of the most common applications: population growth, exponential decay, and compound interest.

How are exponential and logarithmic functions used in real life?

Exponential and logarithmic functions are no exception! Much of the power of logarithms is their usefulness in solving exponential equations. Some examples of this include sound (decibel measures), earthquakes (Richter scale), the brightness of stars, and chemistry (pH balance, a measure of acidity and alkalinity).

What are the applications of logarithms?

Logarithmic scales reduce wide-ranging quantities to tiny scopes. For example, the decibel (dB) is a unit used to express ratio as logarithms, mostly for signal power and amplitude (of which sound pressure is a common example). In chemistry, pH is a logarithmic measure for the acidity of an aqueous solution.

### What are exponential functions examples?

An example of an exponential function is the growth of bacteria. Some bacteria double every hour. If you start with 1 bacterium and it doubles every hour, you will have 2x bacteria after x hours. This can be written as f(x) = 2x.

### How can we use the concepts of representation of exponential in our life?

Exponents are supercript numerals that let you know how many times you should multiply a number by itself. Some real world applications include understanding scientific scales like the pH scale or the Richter scale, using scientific notation to write very large or very small numbers and taking measurements.

What are examples of exponential functions in real life?

Exponential functions are often used to represent real-world applications, such as bacterial growth/decay, population growth/decline, and compound interest. Suppose you are studying the effects of an antibiotic on a certain bacteria.

How are Logarithms useful in daily life?

Real Life Application of Logarithms in Determining pH Value The Real-Life scenario of Logarithms is to measure the acidic, basic or neutral of a substance that describes a chemical property in terms of pH value.

## Are Logarithms used in real life?

Real Life Examples of Logarithms (in Everyday Life) The Richter Scale for earthquakes is a classic example of a logarithmic scale in real life. Decibels, light intensity and and pH (as in, my pool water testing kit) are all well-known logarithmic scales.

## How are exponential and log functions related?

Exponential functions are related to logarithmic functions in that they are inverse functions. Exponential functions move quickly up towards a [y] infinity, bounded by a vertical asymptote (aka limit), whereas logarithmic functions start quick but then taper out towards an [x] infinity, bounded by a horizontal asymptote…

How do I solve log x?

Solve for X Using the Logarithmic Quotient Rule Know the quotient rule. Isolate the logarithm to one side of the equation. Apply the quotient rule. Rewrite the equation in exponential form. Solve for x. Write your final answer.

How do you calculate natural log?

You can use the natural logarithm function (LN, the shifted function of the 2 key) to compute the common logarithm of a number using the relationship. log(x) = ln(x)/ln(10) In words, calculate the natural log of the value and divide it by the natural log of ten.

### What is a linear and exponential graph?

On a regular (linear) graph, linear growth looks like a straight line , while exponen­tial growth looks like a line curving rapidly upward. Modern technological advances often follow an exponentially accelerating curve during an initial, rapid growth phase. Here, for example, is a graph showing production of solar panels (photovoltaics):