# What is a lie detector and what are its functions?

A lie detector, commonly known as a polygraphy, tests your physiological reaction to a series of questions, asked by a trained polygraph examiner. The measurements on the polygraph machine are used... Read More »

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## How to Install a Smoke Detector or Carbon Monoxide Detector?

It's an overused saying - better safe than sorry. Most fire deaths occur in homes lacking smoke detectors.[1] To protect your loved ones, it is imperative that you install smoke and carbon monoxide... Read More »
http://www.wikihow.com/Install-a-Smoke-Detector-or-Carbon-Monoxide-Detector

## How to Write Functions as Products of Two Linear Functions?

A function is linear if its graph is a straight line. A linear equation, such as y = 3x + 1, can be written as a function by removing the equal sign and adding functional notation, e.g. f(x): 3x + ... Read More »
http://www.ehow.com/how_8493014_write-products-two-linear-functions.html

## What are some of the functions of the functions of the departament of homeland secutity?

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