When you take the absolute value of a number, the result is always positive, even if the number itself is negative.

The absolute value is always positive, so you can think of it as the distance from 0. I like to then make the expression on the right hand side without the variables both positive and negative and split the equation that way.

In this case our answer is all real numbers, since an absolute value is always positive. Here are more problems: Try the answers in the original equation to make sure they work!

Note that we still have to simplify first to separate the absolute value from the rest of the numbers. Check the answers; the work! Note that we get some complex roots since we had to take the square root of a negative number.

We need to treat the absolute value like a variable, and get it out from the denominator by cross multiplying. Then we can continue to solve, and divide up the equations to get the two answers. Check the answers — they work!

In this case, we have to separate in four cases, just to be sure we cover all the possibilities.

Solving Absolute Value Inequalities When dealing with absolute values and inequalities just like with absolute value equationswe have to separate the equation into two different ones, if there are any variables inside the absolute value bars.

We first have to get the absolute value all by itself on the left. Now we have to separate the equations. We get the first equation by just taking away the absolute value sign away on the left.

The easiest way to get the second equation is to take the absolute value sign away on the left, and do two things on the right: Here are some examples: Even with the absolute value, we can set each factor to 0, so we get —4 and 1 as critical values.

Then we check each interval with random points to see if the factored form of the quadratic is positive or negative, making sure we include the absolute value.

Then we need to get everything to the left side to have 0 on the right first. Simplify with a common denominator. We see the solution is: Graphs of Absolute Value Functions Note that you can put absolute values in your Graphing Calculator and even graph them!

Absolute Value functions typically look like a V upside down if the absolute value is negativewhere the point at the V is called the vertex.

Applications of Absolute Value Functions Absolute Value Functions are in many applications, especially in those involving V-shaped paths and margin of errors, or tolerances.

Problem Solution Two students are bouncing-passing a ball between them. Create an absolute value equation to represent the situation.Parametric Equations in the Graphing Calculator. We can graph the set of parametric equations above by using a graphing calculator. First change the MODE from FUNCTION to PARAMETRIC, and enter the equations for X and Y in “Y =”..

For the WINDOW, you can put in the min and max values for \(t\), and also the min and max values for \(x\) and \(y\) if you want to. The absolute number of a number a is written as $$\left | a \right |$$ And represents the distance between a and 0 on a number line.

An absolute value equation is an equation that contains an absolute value expression. § Implementation of Texas Essential Knowledge and Skills for Mathematics, High School, Adopted (a) The provisions of §§ of this subchapter shall be .

In quantum mechanics, the Schrödinger equation is a mathematical equation that describes the changes over time of a physical system in which quantum effects, such as wave–particle duality, are srmvision.com systems are referred to as quantum (mechanical) systems.

The equation is considered a central result in the study of quantum systems, and its derivation was a significant landmark in. Problem: Solution: Two students are bouncing-passing a ball between them.

The first student bounces the ball from 6 feet high and it bounces 5 feet away from her. The second student is 4 feet away from where the ball bounced..

Create an absolute value equation to represent the situation. To search the site, try Edit | Find in page [Ctrl + f].Enter a word or phrase in the dialogue box, e.g. "decision" or "value" If the first appearance of the word/phrase is .

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Absolute value equation infinite solutions - Mathematics Stack Exchange