Graphing absolute value equations and inequalities is a more complex procedure than graphing regular equations because you have to simultaneously show the positive and negative solutions. Simplify the process by splitting the equation or inequality into two separate solutions before graphing. Absolute Value Equation Isolate the absolute value term in the equation by subtracting any constants and dividing any coefficients on the same side of the equation.

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Basic Concepts In this chapter we will be looking exclusively at linear second order differential equations. The most general linear second order differential equation is in the form. In the case where we assume constant coefficients we will use the following differential equation.

Here is the general constant coefficient, homogeneous, linear, second order differential equation. This example will lead us to a very important fact that we will use in every problem from this point on.

The example will also give us clues into how to go about solving these in general. We need functions whose second derivative is 9 times the original function.

Algebra - Absolute Value Inequalities |
The absolute value is always positive, so you can think of it as the distance from 0. |

Compound inequalities examples | Algebra (video) | Khan Academy |
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Solving Radical Inequalities Graphically |
Absolute value inequalities Video transcript I now want to solve some inequalities that also have absolute values in them. And if there's any topic in algebra that probably confuses people the most, it's this. |

Solving absolute value equations |
Absolute value equations Video transcript Let's do some equations that deal with absolute values. |

One of the first functions that I can think of that comes back to itself after two derivatives is an exponential function and with proper exponents the 9 will get taken care of as well. So, it looks like the following two functions are solutions.

These two functions are not the only solutions to the differential equation however. Any of the following are also solutions to the differential equation. This example leads us to a very important fact that we will use in practically every problem in this chapter.

This will work for any linear homogeneous differential equation. Since we have two constants it makes sense, hopefully, that we will need two equations, or conditions, to find them.

We do give a brief introduction to boundary values in a later chapter if you are interested in seeing how they work and some of the issues that arise when working with boundary values. Another way to find the constants would be to specify the value of the solution and its derivative at a particular point.

As with the first order differential equations these will be called initial conditions. Example 2 Solve the following IVP. At this point, please just believe this. You will be able to verify this for yourself in a couple of sections.

This means that we need the derivative of the solution. For a rare few differential equations we can do this. However, for the vast majority of the second order differential equations out there we will be unable to do this.

So, we would like a method for arriving at the two solutions we will need in order to form a general solution that will work for any linear, constant coefficient, second order homogeneous differential equation. This is easier than it might initially look.

We will use the solutions we found in the first example as a guide.Radical Function Graphs. First of all, let’s see what some basic radical function graphs look like.

The first set of graphs are the quadratics and the square root functions; since the square root function “undoes” the quadratic function, it makes sense that it looks like a quadratic on its side.

Section Solving Exponential Equations.

Now that we’ve seen the definitions of exponential and logarithm functions we need to start thinking about how to solve equations involving them. The other case for absolute value inequalities is the "greater than" case.

Let's first return to the number line, and consider the inequality | x | > The solution will be all . What we're going to be working on here is how to graph Absolute Value inequalities, Absolute Value inequalities. What I want to do is show you guys a shortcut using a parent function so that when you guys see this in your homework hopefully it will go a little faster.

Solving Inequalities. Sometimes we need to solve Inequalities like these: Symbol. Words. Example > Solving inequalities is very like solving equations we do most of the same things Multiplying or Dividing by a Value.

Another thing we do is multiply or divide both sides by a value (just as in Algebra. Step2: Set the quantity inside the absolute value notation equal to + and - the quantity on the other side of the equation. Step 3: Solve for the unknown in both equations.

Step 4: Check your answer analytically or graphically.

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Absolute Value in Algebra