If you’ve ever taken an algebraic math class, which is most of the ones you’ll find in high school. You know about this vertical line-based sign.
It’s an interesting expression. One that defines a value for a number called magnitude, without respecting its sign. This means that negative numbers are ignored, as an absolute value is only found within positive numbers. No negative numbers are allowed.
Of course, with any calculations problems can become more or less challenging. Are often require more powerful technology to help you solve them. The most common aid for any student, teacher, or math enthusiasts comes in form of an absolute value calculator.
This type of device allows you to graph or solve equations that implement absolute values. When graphing, you get the full picture of the equation. This is much faster than you graphing the equation by hand, and in math time is always of essence.
Again, it does come back to how complex the actual functions are but having a piece of equipment. As the absolute value calculator can make this process much smoother.
The best part is that there are many different types of calculators that can perform these actions. Giving you plenty of options to find the best one for you.
We’ll look at some models that provide you with the power you’ll need along. With the steps to accurately use this device to your advantage.
First, You Must Understand Absolute Value on Calculators
While absolute value is a function that’s easy to understand. Once you’ve gotten the hang of it. Using it in calculator form can be a challenge.
The first step in using your calculator’s absolute value feature. Finding the right button or input that grants access to absolute value. To accomplish this, you might have to do some digging. Many calculators today have different categories and aren’t built for just mathematical equations, for example.
However, since we know that absolute value is a function defined by mathematics, we can start our search there. To find your absolute value calculator, though, you’ll have to go further.
Within the math category, most hardware will feature numerous options, such as number, complex, probability, fractions, etc. For example, on the TI-84 Plus. You can press the 2nd key, then the zero key to bring up the math menu.
Often the first name within the number category as absolute value deals with numbers. The absolute value function can be easy to spot from here. Quick few buttons away but knowing how to use the absolute value calculator shortcuts can save even more time.
Using Graphs to Determine Absolute Value
Using an absolute value calculator can make solving this function easy. Sometimes uses graphs can help you understand the significance of the rule.
Absolute value gets tricky once you get into complex numbers. Which is about the time where an absolute value calculator can come in handy.
Most graphing calculators can compute and graph standard equations and inequalities found within assignments. It’s quite a bit harder, though, to solve complex equations.
Now that you know where to find the absolute value function on your device, though, graphing becomes easier.
If you’re not sure about how to use your specific calculator. One of the easiest ways to touch upon that information is through the manual. It sounds sort of cheesy, using the manual to learn about the device. But it provides a clear, concise explanation about your specific calculator.
Inputting right Equation
Within your “y=” button, or the graph button on certain calculators. All that’s required is inputting the right information or equation.
After you’re there, the next step is going back to the absolute value function. Pressing it and inputting the equation you’d like to graph. This can be as simple as |x + 4|, or as complex as |4x-34+2x|, as the calculator. Pending any mis-entered information will graph the whole function.
Also, another easy thing to forget is that for everything function. There is a different way of writing it. Often within textbooks or on homework problems, functions will be written as “f(x)=a+b.” The same function can be written as “y=a+b” as the equation is there to find the values of y in relation to x.
This addition to the standard absolute value calculator found on your device is a bonus. Especially when trying to find data points at specific intervals.
The best part is that all the data that you might need to find. Such as a specific coordinate pair or value for x, is able to be seen right on the screen.
Gone are the days of guessing plot points to shape your graph. As all you need is the equation and the right hardware.
Need to Solve Negative Equations? No Problem
As you get into more complicated equations and values, there will be a point that you encounter negative numbers. These will be odd at first because instead of the negative sign appearing. On the inside of the absolute value brackets it will be on the outside.
Remember, using the absolute value function flips all numbers inside to positive. This means the only way of seeing any true negative numbers are through signs on the outside.
You might be wondering if an absolute value calculator. Whether you’re graphing it or inputting the data manually, can solve a negative value. The answer is yes, as any device that can solve standard absolute value equations should answer those problems.
The only thing to remember when using negative signs is that you can’t use the minus symbol or sign. Rather, you need to locate the negative value button and use it for those problems that require it.
If You’re in a Pinch, Online Absolute Value Calculators Work Too
Your math teacher will probably argue otherwise. But there are plenty of online resources that you can use if you don’t have access to your trusty calculator.
The best advice, before using one, is to test out one or more simple equations. This means trying out problems that you already know the answers to, making sure the calculator spits out the correct data.
Some of these online calculators work fine but struggle with more complex functions. Keeping this in mind will help any potential issues you find with answers or data that turns out to be incorrect. It also helps temper expectations going in.
If you’ve found that the online absolute value calculator will suffice. Then you’re safe to experiment with real usage. For ones that are recommended, there are a few that can be used safely.
One is by Symbolab. This resource can be great because, in addition to the absolute value calculations. It can solve other equations. Even if you need the graph, the site has you covered. Easy to see plotting is provided. Which makes this program a solid choice when you don’t have access to your standard calculator.
Another option that is useful can be found in Studygeek. This free-to-use absolute value calculator provides a quick, intuitive function calculator that solves and plots at the same time. While it takes a few seconds to load the results, the values are given on a graph, as well as through the variable values themselves.
While online calculators can’t come with you into a classroom, they can be a decent option when you need an absolute value calculator quickly. The data is presented in the same easy-to-follow manner as the points on any calculator will be, but still should provide the same answers.
Using an Absolute Value Calculator Can Be Easy
Lots of practice tends to have a positive effect on outcomes and using your graphing calculator to solve absolute value functions and equations are no different.
It goes without saying, but the more you dive into the functions on your calculator, the easier it is to locate and find the correct programs when necessary. Most of the time, you’ll find the absolute value button within the math area on your device. Specifically, you’ll probably find the number sub-category to be most helpful.
Remember too, that the absolute value function itself is easy to understand but can be deeply confusing without the proper concept knowledge.
The idea of the absolute value calculator function is making equations simpler to solve or graph. This can lead to solving the problems faster, with a much more reliable rate of correctness than before.
Make sure you know how to find, and use, it when necessary.