In this video, the instructor shows you how to graph quadratic equations. When you have a quadratic equation in terms of x and y, first try to identify the coefficients of the terms. Now use front end of the quadratic formula to find the line of symmetry which is the first half of the vertex using the formula x = -b/2a. This gives the line of symmetry. Next, plot the line using a few points starting at the line of symmetry. Take sample values of x and find the corresponding values of y on eit...
In this video the instructor shows how to use proportions to solve fractions. When you have a proportions problem with an unknown term, cross multiply and divide it to get the value of that unknown term. For example if given 7/8 = m/4, cross multiply 7/8 with 4, giving 7/2 which is the value of the unknown variable m. So if two quantities are proportionate then you can equate them as shown in the video and cross multiply to get the value of any unknown variable. Proportions are just fractions...
In this video, they demonstrate how to factor a trinomial. A trinomial is a polynomial with a quadratic term in the form, ax^2+bx+c. To factor this polynomial first multiply the a and c term. You must fine two numbers that multiply to a*c and add up to b. Once you have figured out the two numbers you place the two numbers (D and E for example) in the equation (1/a)(ax+D)(ax+E). It takes a bit of practice to be good at deciding what D and E are, but the best way is to make sure that D*E = a*c ...
In this tutorial the instructor shows how to solve percent equations. The general form of a percent equations is that a is b% of c. As there can be three kinds of variables a, b, c, the questions involving percent equations can be of three types having one of the three variables unknown. These kind of percent statements can be solved easily by setting up an equation. So, to convert percent statement into a equation replace the unknown term with n, the 'is' term with equals sign and the '%' si...
In this video the instructor shows how to solve rational equations. If you have fractions in your equation, then you need to factorize the denominators first. Now compute the least common denominator of all the denominators of the fraction. Next multiply both sides of the equation with the least common denominator. This cancels out all the denominators of all the fractions and you are left with a linear equation. Now simply multiply the remaining terms in the numerator and add common terms to...
In this video, Yuri Elkaim will teach you how to get six pack abs using cardio and strength training. He breaks down the discussion of cardio vs. strength training for burning fat and building muscle. In the video, Elkaim stresses high-intensity interval training (HIIT), in which he says you will burn more calories, and therefore lose more fat if that is your aim. Furthermore, working at a higher intensity for longer periods of time increases your cardiovascular strength to an even higher deg...
In this video, the instructor shows how to find the equation of a circle given its center point and a tangent line to it. To do this, take a graph and plot the given point and the tangent on that graph. Now, from the center of the circle, measure the perpendicular distance to the tangent line. This gives us the radius of the circle. Using the center point and the radius, you can find the equation of the circle using the general circle formula (x-h)*(x-h) + (y-k)*(y-k) = r*r, where (h,k) is th...
In this video the instructor shows how to divide rational expressions. To divide rational expressions follow this simple four step approach. In the fist step change the division to multiplication by flipping the second fraction. Now the original division simplifies to multiplication. In the second step factor the terms of numerators and denominators in the two fractions. In the third step cancel the common terms in the numerator and the denominator. Now finally in the fourth step multiply all...
This video shows the method to prove some trigonometric identities. This involves the use of algebra and knowledge of basic trigonometric identities. The video demonstrates three examples to illustrate this problem and its solution. The first problem shows a relatively simple problem involving sines and cosines. The video shows some basic algebra steps to simplify the problem and prove the identities. The second example involves a slightly complicated problem involving square of combination o...
This is a video that teaches how to add and subtract fractions. For fractions that have like denominators, you simply add the numerator and keep the denominator. Next, you reduce the fraction to its lowest term.
In this simple tutorial the tutor shows how to solve equation by the distributive property. He states that when there is a number which is multiplied to a full equation, we have to multiply each and every term of that equation by that multiplying number. This is called the distributive property as the value is distributed to each and every term inside the equation. He goes on and solves a problem based on this property to give a clear idea of the property. This video shows how to solve equati...
How to Use the Highest Common Factor method for Factoring
This video describes how to improve one's memory by using a grouping technique. First you break up large chunks of information into smaller chunks and then you focus and concentrate on memorizing those smaller chunks one at a time. The video then describes how short term memory work on the anatomical level. This video is about four minutes long and will help you improve your short term memory. This video is great for those who are generally forgetful.
This video teaches you how to convert fraction to decimals in three easy steps. The process of decimal to fraction conversion involves the use of the fundamental rule of fractions; the fraction should be written in its lowest terms.
While dividing the radicals, the numerator and the denominator must be combined into a single term, for example if we want to divide square root of 3 by square root of seven we need to combine the numerator and denominator into a single factor that is square root of 3/7, then we can divide 3/7 which is 0.4285, and square root of 0.4285 is 0.654 which is the final answer.
This how to video describes how to understand and use Tagalog grammar terms properly. The author suggests reading the book "Conversational Tagalog" to help increase your basic understanding of the language. He then covers the use of verbs and other grammatical devices in the Tagalog language. This video is perfect for those who are studying the Tagalog language or for those who need a quick refresher. The video lasts about eight and a half minuets and leaves you with a better understanding of...
This video demonstrates how to solve algebraic equations of the first degree for the variable, "X"; in other words, the variables contained in these equations are not raised to any power other than one, which is implicit. The video starts out with an example of such an algebraic equation. Before beginning to solve the equation, the video explains the meaning of the equals sign, the definition of an equation, and what a variable is. Next the video explains what is meaning by "solving for X". T...
In this tutorial you are shown exactly how to do algebraic long division when terms are missing in the polynomial. Follow these steps and you can divide whatever you'd like:
This video is about using the grouping factoring method. We're using a four term polynomial. There is a even number of terms. We can break them into two groups of 2. The first group of "2" the common factor is "a." The last group, the common factor is "-2b". The reason we use -2b is to assure that what is in the first group is the same as the second group. Because of the distributive property of multiplication over addition, we take the a-2b and put it in one bracket. Multiply by 3x+1. With 6...
This is a fun project that doesn't take much in terms of time or resources. You can even make it out of your scrap fabric! Use whatever notions or embellishments you want to create a lovely, Victorian inspired pillow at home.
Icy-Hot has relieved and caused intense pain for decades, and this is one of the best Icy-Hot pranks we've ever seen. All you need is a victim who uses body wash regularly, some Icy-Hot, and a desire to cause someone intense but not long-term harmful pain.
The term "Gyaru" has an interesting lineage. Coming from the English word "gal," Gyaru denotes women in their teens and twenties who don't care too much about work and dress up trendy, and oftentimes like little girls.
If you're into creating your own dried herbs and spices, you will eventually start to have questions about how to store them long-term, rather than just leave them hanging. This tutorial shows you how to properly store and care for home dried herbs.
Whether it's research, a school project or term paper, going on an expedition, what have you, having to preserve animal tracks should be a part of your bag of tricks that you can do. But don't just grab some random plaster of paris and just start pouring. Check out this video first and learn how to properly preserve the animal tracks that you find in the wild.
If you're just getting started in photography or if you're looking to learn a little bit more about your camera, then you may have run into the term "Aperture" or "Aperture Values", or those weird number numbers. Aperture is in the lens of your camera and determines how much light enters into the lens itself and helps to determine your focal length. In this video you will get a small lesson on what Aperture is, and how to calculate focal length and aperture values.
Google is always moving one step closer to pretty much controlling everything in the world, in a good way ofcourse! The latest feature added is Google Instant Search, so for anything that you're searching all you have to do is start typing in the search term and Google will immediately begin giving you results on the fly. In this video you will get a quick hands on demo on how to use the new feature.
An ajisai flower is the Japanese term for a hydrangea, a flowering plant which is native to eastern Asia and North and South America. These softly colored shrubs are the inspiration behind Fast Origami's tutorial for making an origami ajisai flower.
There are many tricks that a skateboarder can perform, but they each vary in terms of difficulty. In this tutorial, you'll find out how to perform the pop-shove it trick on your skateboard. This is a very common trick that most skaters are able to perform. So, good luck and enjoy!
See how to find the formula for an arithmetical sequence in college-level algebra given two terms in this free video college-level algebra lesson. From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next big test).
As you might guess, one of the domains in which Microsoft Excel really excels is business math. Brush up on the stuff for your next or current job with this how-to. In this tutorial from everyone's favorite digital spreadsheet guru, YouTube's ExcelIsFun, the 17th installment in his "Excel Business Math" series of free video lessons, you'll learn how to define prime numbers, determine prime factors, reduce fractions (i.e., write fractions in their lowest terms) and convert mixed numbers to imp...
Fun tutorial on japanese anime drawing. "Chibi" is a Japanese term for "short person" or "child". All the chibis in this video are based on characters from Miki Falls, a book by Mark Crilley, the creator of this video. The music was created in Garageband 2.0.2. Learn how to draw different emotions for manga characters.
Sow your wild oats! In this video, Jody Fath shares the expertise she gleaned from her eleven months backpacking around the world. In this video, you'll learn to plan for a long-term trip abroad. Learn how to determine what type of traveller you are, how to budget for your trip using online cost-of-living estimation and even how to pack in this great tutorial.
One of the most misunderstood terms in cold process soap making is the word "trace." Find out what how to test and achieve trace in your next soap project.
Build your very own solar water distiller to discover how nature filters water via the sun and evaporation. The correct term for this is distillation.
In terms of Halloween costume popularity, we think dressing up as Snooki from "Jersey Shore" only falls behind going as a vampire and as Lady Gaga. After all, the Jersey gal has a whole lotta fun personality and personal style to work with.
Knowing music theory never hurt anyone—not Bach, not Chopin, not Schoenberg. Even if you fancy yourself a musical iconoclast, the better you know the rules of music, the better equipped you'll be to break them down the line. In this free video music theory lesson, you'll learn how to use and understand the most frequently used terms and phrases in music theory. For more information, including a very thorough overview, watch this helpful musician's guide.
The esteemed tradition of Chinese watercolor goes back thousands of years and hasn't changed much in terms of composition, subject matter, and materials used. So back then as much as today sky dieties and kings would sip green tea outside pagodas perched high above the clouds, surrounded by monumental mountains and far removed from mortal space.
The Breach is one of the many popular online games available from Kongregate Games. Like any game, it can be rendered more enjoyable in the long-term by cheating at it. This video will show you how to use Cheat Engine 5.6 to hack the game and give yourself more experience points, making your character nearly indestructible. Don't let the zombies win, watch this video!
Have a pair of shoes that are a bit too tight in terms of length and width but which are otherwise perfect? With a two-way shoe stretcher, this problem is easily resolved. And this handy cobbler's guide presents an easy-to-follow overview of how to use one. For more information, and to get started expanding your own shoes with a two-way shoe expander tool, give this tutorial a look.
In this video, learn how to pair your Bluetooth enabled phone with your new 2009 Nissan head unit. This procedure should work with multiple Nissan models and is not as simple as other car makers, but is equally effective. This will take a few extra minutes but is worth it in terms of safety and simplicity once it is up and running.
