This video shows how to find the formula of a piecewise function when given a graph. The first step is to write a definition for the graph, which is done by identifying the different domains shown in the graph. The second step is writing formulas for each domain specified by t ...more
In this tutorial the instructor shows how to complete the square to graph a quadratic function using transformations. You can do this by transforming your equation in a series of steps. First make the coefficient of the square term to one by pulling out its numerical coefficie ...more
This video deals with solving quadratic functions. It does not involve the use of the quadratic equation; rather, only factored equations are used. The speaker starts out with a factored quadratic equation. The speaker goes on to do the mathematical steps necessary to find bot ...more
This video walks you through the steps of solving linear function graphs. This excellent video shows you a clean blackboard, with the instructors voice showing exactly what to do. Don't fret, any question you may have, will be answered. Watching this video will make you feel l ...more
This video walks you through the steps of graphing quadratic funtions. This excellent video shows you a clean blackboard, with the instructors voice showing exactly what to do. Don't fret, any question you may have, will be answered. Watching this video will make you feel like ...more
Need help figuring out how to graph a rational function with limits? Learn how to graph a rational function using limits to find discontinuities and functional asymptotes with this free video lesson. From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's ...more
Learn how to use the unit circle definition of the sine function to make a graph of it. 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 tha ...more
Need to know how to find the formula for a piecewise function from a graph? Learn how with this free video 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 th ...more
This video teaches us to draw the graph of a piecewise function. This is shown using two examples. In the first example we have 'y' equal to 'x + 2' for x less than zero and '1 - x' for x greater than equal to zero. We plot two points on the function for x less than zero and d ...more
One of Microsoft Excel's capabilities is to allow you to graph Normal Distribution, or the probability density function, for your busines. This is a quick and easy tracking feature you can learn in just a few minutes.
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 study for that next big test). With this in ...more
This video shows the method to plot the graph of the absolute value of a function. The video shows the example of the function of cube root of 'x'. The demonstrator first plots the graph of a cube root function. This is done by taking the reference point of positive one and po ...more
The video shows the explanation of greatest integer function. This video explains this with the help of graphs. The video first describes the basic greatest integer function. This means the greatest integer less than or equal to the number gave. The graph of this function is d ...more
PatrickJMT takes you through step by step on the basics of how to use curve sketching to solve calculus equations. Steps that are covered in this two part video include domain, intercepts, symmetry, horizontal and vertical asymtotes, intervals of increase/decrease, local maxim ...more
While hackers adore the command line, working with the GUI (graphical user interface) of an operating system has some advantages. This is especially true when it comes to post-exploitation. When we can control the mouse and keyboard of a remote computer, we can truly say we ha ...more
Given a function, you can easily find the slope of a tangent line using Microsoft Excel to do the dirty work. That is to say, you can input your x-value, create a couple of formulas, and have Excel calculate the secant value of the tangent slope. This is a fantastic tool for S ...more
During a penetration test, one of the most important aspects of engaging a target is information gathering. The more information you have coming into an attack, the more likely the attack is to succeed. In this article, I'll be looking at SpiderFoot, a modular cross-platform O ...more
Welcome back, my greenhorn hackers! Digital forensics and hacking are complementary disciplines. The better you are at digital forensics, the better hacker you are, and the better hacker you are, the better you are digital forensics. Unfortunately, few people in either profes ...more
The newer Graph Search in Facebook can help you find friends in specific cities, photos of a particular subject, restaurants that your friends liked, and a whole lot more. One thing it can't help you with just yet is searching public posts on Facebook, which you could do in th ...more
Excel 2008 for Mac makes it easy to create formulas for cells. You could always do it before, but now with the new Formula Builder feature, building formulas just got one step closer to simple. The Microsoft Office for Mac team shows you just how to build formulas by using the ...more
In today's world of social media, there's really only two powerhouses—Facebook and Twitter. And those of you with Twitter accounts know the power of a Tweet. Getting more followers means reaching more people, but the vast majority of Tweeters are following only a handful of Tw ...more
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 ...more
For the holiday season, a great knitting project is a snowflake design. It's perfect for handmade Christmas gifts. You can knit just one, or a row of them, or use them as full pattern on a sweater or blanket—or whatever project you choose. Here is the snowflake graph to follo ...more
Most of us would love reclining into a steaming, soothing bath of warm water with a glass of champagne and a good romance novel, but let's face it: With all that we have to do these days, we're lucky if we have ten full minutes in the bathroom to ourselves. Make the most of y ...more
One of the most obvious perks of using the Clojure is the user community organized around it. With this clip, the fourth installment in Sean Devlin's "Full Disclojure" series of Clojure video tutorials, you'll learn how to use the new constraint system in Clojure 1.1. Constrai ...more
If you're looking for a creative place to stash your cash or small valuables, this how-to video walks you through the process of turning a DVD drive into stash box. Armed with a screwdriver and some time, this video gives detailed step-by-step instruction on talking apart your ...more
There is a new function in MS Excel 2010 called ‘Sparkline’ which helps you quickly find trends associated with a set of data. To create Sparkline, you can go to ‘Insert’ tab and then select ‘Sparkline’ section and then select the graph type. After you enter the data range and ...more
In this video the instructor shows how to graph a piecewise defined function. A piecewise defined function is a function that is defined in separate pieces. In these kind of functions, for different ranges of the value of x, you are given different small functions, all of whic ...more
This video shows the method to graph a linear function by finding the X and Y intercept. Only two points are needed to graph linear functions. So we find the point on Y axis or the Y intercept and the point on the X axis or the X intercept. We notice that on the Y axis the X c ...more
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 study for that next big test). With this tw ...more
This test can be used to determine whether the given graph is a function or not. Before going into the vertical line test let's first understand what is a function in a graph? A function can be defined as for every input there can be only one output. In order to test this we ...more
Making a buttonhole is easy to sew using the buttonhole presser foot and the four step buttonhole function on a Singer sewing machine. This video sewing tutorial guides through the simple step by step process of making a professionally finished buttonhole. Watch and learn how.
Learn how to find the slope of a line in this math tutorial. Whether you're doing your math homework or trying to figure out how steep a mountain is, the slope of a line is simple to calculate and has many practical uses. You Will Need: • Graph paper • Pencil • Basic math ski ...more
Algebra – The Distance Formula. This video describes how to find the distance between 2 points of a graph in a step by step method. Made by Ya Math, the instructor assists the class in finding the distance between (6,8) and (3,4) by showing us the equation d=v((x_1-x_2 )^2+(y_ ...more
In this video the teacher shows us how to use a TI-84 plus graphing calculator to graph a function, adjust the view window, and determine the values of several types of critical points on the graph such as x-intercept, y-intercept, local maximums, and local minimums. After ent ...more
In this video the tutor shows how to graph a straight line using the rise over run method. The rise over run trick allows you to graph a straight line as long as you have a starting point and a slope value in the form of a fraction. The first step is to graph the starting poin ...more
Wondering how to use a mean and scatter plot for statistics? Just follow the few simple steps as below. First step: calculate the scatter plot points on a graph. Second step: make sure to check that mapping the points is perfect. Third step: For example, take a point where ...more
It seems like there's never any breaks in air travel when it comes to money. The airfares just keep rising, and now most major airlines charge for all checked baggage, so carry-ons are the way to go. But you need to know how to take it easy with your packing list. Pack light a ...more
Graphing a line in slope-intercept form is easy in simple after watching this video. In this math tutorial, you'll be guided step-by-step how to graph a line from an equation in the y=mx+b format. The steps include determining the slope and the y-intercept, plotting the y-inte ...more
In this video the instructor shows how to graph a line using X-Y table values. He specifies a four step approach. In the first step he picks numbers for the value of x. In the next step he substitutes the values of x in the equation of the line to obtain the corresponding y va ...more
Professor ElvisZap teaches you how to stretch shift and reflect the graph of a square root. A square root function is the opposite of a squared function. You start with y=square root of (x-1) it becomes 0<=x-1. then 1 <=x. You use the graph and solve it as you would for any fu ...more
This tutorial covers installing the WAMP (that is, Windows-Apache-MySQL-PHP) all-in-one package and creating a MySQL database using the import function of phpMyAdmin. For step-by-step instructions on the WAMP installation process, or to get started installing your own WAMP ser ...more
This video is an instructional guide about Graph Linear Equations presented in algebraic form. It is an easy to follow, step by step guide to solving such equations using the graph intercept formula. The first example equation is Y = 2x -1 over y = mx + b. The video then shows ...more
If you've ever heard software piracy terminology being discussed, I'm sure the term KeyGens came up. KeyGens is short for key generator, which is a program that exploits algorithmic faults in software by generating software license keys that appear to be genuine. Normally used ...more
Watch this video to learn how to reflect a shape across the x-axis. To just change the locations of points in a graph along x-axis, there is a single step involved. Consider A=(-5,-8), B=(-3,-4), C=(-8,-3), D=(-6,1) a graph which is drawn with four points, three in third quad ...more
A method for solving a linear system with no solution is described. The method is described in 4 steps. The first step in the method is designed to solve a linear system that is described consist of “solving by graphing”. Details fo ...more
It's easier than you'd think to prevent hemorrhoids. With a little exercise, attention to diet, and a change in habits, you can become hemorrhoid-free. WARNING: Consult your physician before you change your diet or begin an exercise plan. Step 1 Drink at least eight glasses ...more
The author teaches us how to graph the linear equations with tables. Given a set of linear equations in terms of "x and y", first we have to draw a table having a column each for x and y. We have to enter an arbitrary value of x in that table and substitute that value in the g ...more
Interested in chakras? Boost the seven energy centers from the base of your spine to the top of your head for optimum health and vitality. Learn how to awaken chakras with help from this video. What you will need: • Controlled breathing • Knowledge of chakra properties • F ...more
Looking to be the talk of the town? Do you love gardening and have some time to spare? Build a garden maze and make your yard the neighborhood sensation. You Will Need: • A level, open spot • A pencil • Graph paper • A lawn mower • Rope or string • Plants • A shovel • ...more
This video shows how to make a screen capture program in Visual basic. The first step to create a screen capture is to open a new project and open a new form window. The second step is to create to temples for either saving or capturing the picture you choose to select. The th ...more
In this tutorial, we learn how to graph a parabola. Quadratic functions are parabolas. To graph these, you will first need to look at the function, which is the set of outputs for a set of inputs. Write this out on a t-chart to find what your 'x' and 'y' values are. Once you f ...more
This video shows the method to use differential equations to represent growth. Consider the function y=multiple of C & e raised to kx or Ce^(kx). Differentiating it with respect to x, we get dy/dx=kCe^(kx) or ky. So, the solution of the differential equation dy/dx=ky is Ce^(kx ...more
Looking to spruce up your living room or bedroom? Learn to combine a vivid imagination with good paint sense to choose the right colors for your walls and feel good about your surroundings. You Will Need: • Knowledge about each room • Paint • Poster board Step 1: Think about ...more
This video shows the method to make a line graph. First step involves drawing a horizontal and vertical line joined at one end. We have to plot the maximum and minimum temperatures during 5 days. Label the vertical with the temperatures(10, 20, 30...50) and the horizontal line ...more
This video shows the viewer how to solve simultaneous equations using a graph or ‘graphing’ as it is referred to. This is done by first rearranging both equations so that y is the object of both equations. The equations can then be solved via substitution – the video does not ...more
Awakening the sixth chakra – known as the third eye – also awakens your sixth sense, and unlocks psychic potential. In this tutorial, learn how to harness your spirituality and get in touch with your third eye. You Will Need • Emotional stability • Water • Healthy food • Y ...more
Sick of that burning, persistent, acid sensation? With a couple of easy steps, you can put your stomach at ease and boost digestive health. You Will Need * A healthy diet * Water * Cumin * A healthy weight * A doctor Step 1: Avoid fried foods Avoid fried foods, like French fr ...more
Feeling like you need to rid your body of a few toxins? A nice, hot cup of tea isn't just soothing; some varieties have health and diet benefits. See which brew might be right for you. Learn how to tea-tox with help from this video. What you will need: • Roselle tea • Rose ...more
A video from The Free Math Tutor that shows you how to use graphs to solve simple linear algebraically problems in mathematics. This video is introductory in nature and teaches the viewer, proper plotting methods on graphs. The presenter also teaches you how to choose a proper ...more