Absolute values are used for determining the magnitude of a number, so they are often used for distance measurements. They are also sometimes used for financial transactions. Absolute values are used when negative values are not possible.Continue Reading
No matter what direction it is moving, a car is also moving in a positive direction; it can never move at a negative speed. However, when a car is traveling toward a particular destination, its velocity toward it can be negative. Because of this, a car's speed is equal to the absolute value of its velocity if it is traveling directly to or away from the target.
This is because velocity is a vector value, and speed is a scalar value. Scalar units measure the overall speed of an object, which must be positive. Vector units measure speed and direction, so they can be negative.
Absolute values are also useful in some financial scenarios. The money involved in a transaction, for example, is always positive, so the absolute value can help people determine the total amount of money that moved. Stock exchanges and other financial entities are often analyzed, in part, by how much money is moved in a particular period of time, and absolute values are needed to calculate this amount.Learn more about Algebra
The formulas of algebra are used every day in real life when distance needs to be determined, volumes in containers need to be figured out and when sale prices need to be calculated. When using a recipe and doubling it or cutting it in half, algebra is used to determine the exact amount of ingredients. Basic algebraic equations are used almost every day although people often do not realize it.Full Answer >
Mathematical functions are derived for the purpose of describing a set of unknown values the occur in everyday life. Physics is perhaps the best coursework to illuminate how functions can play an intimate role in even the most unlikely of events. The equation x = vt + 1/2at^2 not only describes motion, but it also covers a wide array of subjects relating to growth.Full Answer >
Real-life examples of linear equations include distance and rate problems, pricing problems, calculating dimensions and mixing different percentages of solutions. One application of linear equations is illustrated in finding the time it takes for two cars moving toward each other at different speeds to reach the same point. Another example is estimating how much a shirt on sale for $20 and marked down by 35 percent cost before the sale.Full Answer >
In mathematical functions, the letter "x" is used as a variable, meaning it's used in place of an unknown value or values. The letter "x" is commonly used to represent a variable, a tradition that started with the French mathematician René Descartes in the 17th century.Full Answer >