Brightstorm explains how to use definite integrals to find area. There are two basic area problems: one in which the area lies between the function and the x-axis, and one where the area lies between the two functions. In the first case, if the curve lies above the x-axis for x=a to x=b, the definite integral returns the area. If it lies below the x-axis for x=a to x=b, then the definite integral returns a negative area. In the second case, we assume that f(x) is the higher curve and g(x) is ...
In this math tutorial, you will learn how to simplify square roots with product and quotient rules. To begin, you will need to multiply the square roots so that the two square roots in your equation are reduced down into one. The rule for non-negative "A" and "B" is that the square root of "A" multiplied by the square root of "B" yields the square root of A x B.
A factoring problem that has to be solved by grouping is easy to identify, because you can always identify if there are any similar terms in a polynomial. Now, if you find any variable common in any terms pull them out as the common leaving the rest of the terms. After pulling out the common terms you can group the rest of the polynomial. Be careful while pulling out signs. Pulling out a positive number does not effect the signs of terms in the polynomial, where as pulling out a negative numb...
In this video the instructor shows how to find the slope of a line given two points that like on the line. Slope of a line is the measure of the steepness of the line compared to the angle made by the line with the x-axes. A line with positive slope slants forwards and a line with a negative slope slants backwards and a line parallel to x axes has zero slope. So if you are given two points (x1, y1) and (x2, y2), the slope of the line passing through those two points is equal to m = (y2 - y1)/...
This video shows “How to get over a big break up”. Even if you are in love with the other person, you have to remember that they might not be in love with you. What may help you is to write a list of all the bad things about that person, for example the things that didn't satisfy you in the relationship. You could make some changes in your life, remove the things that remind you of the other person. You could take the things that remind you of that other person, and write a negative memory on...
In this video the instructor talks about parallel and perpendicular lines. Parallel lines are lines whose slope is the same. Now take the equations of a couple of parallel lines. Graph those lines on a coordinate axes and you can see that the lines are parallel to each other and never intersect each other. Perpendicular lines are those whose product of slopes is negative one. Perpendicular lines intersect each other and they make a perfect 90 degrees with each other at the point of intersecti...
In this video the instructor shows how to multiply and write rational expressions in lowest terms. The fist thing you need to do is cancel out the common factors in the numerator and the denominator. You can cancel a term in the top with a term in the bottom even if they are diagonal as long as one is in numerator and the other is in the denominator. After cancellation if you have a term in numerator and an identical term in the denominator but with opposite signs, then pull out the negative ...
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 positive eight. The graph is drawn for both negative and positive values of 'x'. After this the graph of absolute function is drawn by taking the absolute value of the cube root function. The resultant graph comes out to b...
In this video tutorial, viewers will learn how perform the "Spiderman dumbbell curl". The name refers to the similar stance that Spiderman makes when she shoots webs. This exercise targets the bicep muscles. It will stimulate your body to gain muscle and lose fat. Start by sitting on an incline bench. Chest should be open, keep entire upper arm stationary, bring in palms, push elbows back a bit and palms should be facing towards shoulders. The exercise should be done slowly with 3 second posi...
In this video you will learn how to find a slope of a line. The man in the video shows in a practical and easy way, how to do it with formulas. First he teaches how to find slopes of lines containing both negative and positive points. He shows with formulas how to do it. He teaches how to find slopes on a flat line and demonstrates that the slope of it is equal to 0. Next, he teaches a "trick" to help students learn how to identify zero and no slope lines. In the last example, he demonstrates...
This video will demonstrate exactly how to shift a graph on a x,y axis. When shifting a graph on the x axis you will need to replace x with x-h; where h is the variable to shift the graph. No matter how far you need to shift a graph, h is always the number of units you are shifting; shifting up or right is represented as a positive and down or left is negative. Just plug in your units into your equation and you will have your shifted graph.
This video demonstrates how to solve a linear function with rational coefficients by multiplying by the reciprocal of the coefficient. The reciprocal is just a fancy way of saying the numerator and denominator are swapped. Two sample problems are solved using this method. Multiplying each side of the equation by the reciprocal of the rational coefficient of the variable 'x' is an allowed operation, but only because both sides are multiplies by the the same amount. The teacher then demonstrate...
NotesCollegeAlgebra teaches you how to find intercepts on a calculator TI-83. You start with y plus 1.7 equals .8 times x squared plus 1.4 times x. First you subtract 1.7 from both sides, you get y alone on one side. The window should be set to -5...5, -5...5. X scale should be at 1, y scale at 1 and x rez at 1. Make a graph for it, like a parabola. Use trace to get y intercept at negative 1.7. The x intercept is about .85. Continue to use the calculator to get all the values that you need.
The video described here from [free math tutoring Freemathtutoring] teaches how to plot natural number on a number line in different situations. First, the author defines natural numbers, integers and real numbers. He then teaches different methods on how to plot natural numbers on a number line. The most important fact to remember is that natural numbers are greater than 0; they do not include negative numbers. Like wise, he explains different situations to plot natural numbers on a number l...
Learn how to combine images with a mask in Adobe Photoshop by opening the same raw file twice and applying separate exposures. This technique is used to perhaps mask out the sky or the windows. Using the negative exposure making the initially over exposed sky black and the dark parts white which is what the mask feature operates on. Then the designer selects cuts out the sky in the mask layer and makes it invisible so that the second layer or underlying picture shows through.
In this tutorial the instructor discusses about the numeric coefficients that we come across while we work with polynomials. He goes on to discuss the numerical coefficient of a monomial stating that it is the number that is present before the variable in the monomial. He states that the numerical coefficient can also be negative or if there is no number present in front of the variable, it indicates that the numerical coefficient is one. This video helps in understanding what the numerical c...
This how-to video shows viewers how to solve math problems with brackets in polynomials. The person in the video teaches people how to solve the problem with a positive sign before the brackets. This segment does not show how to solve the trickier problem where there is a negative sign in front of the brackets. The tutor shows everything from removing the bracket due to the positive sign, to combining the similar terms for the result of the problem. This video can help anybody deal with brack...
To find a vertical asymptote, you are trying to find values of x that produce 0 in the denominator but not in the numerator. If 0/0 occurs, that means you have a "hole" in the graph. A vertical asymptote is a place in the graph of infinite discontinuity, where the graph spikes off to positive or negative infinity. To find the vertical asymptote, set the denominator equal to zero and solve for x. Check that the values also do not give a zero in the nominator. If the values work, you have found...
This video tells you how to find a slope of a parallel / perpendicular to it. In the equation y = mx + c, m is the slope. To calculate the slope of a line that is parallel to another line, you have to consider the rule m1 = m2 which means slope of the first line m1 is equal to the second line m2, if both the lines are parallel. Take the equation y = 2/3x - 7.2/3 is the slope. According to the rule m1 = 2/3 and so m2 = 2/3.Now to calculate the slope of perpendicular line you have another rule ...
Struggling with math homework? An expert instructor from Khan Academy helps you work your way through the challenges of solving more difficult rational inequalities. Provides fantastic animated examples that demonstrate helpful tips, overcoming common problems with inequalities, and "simplifying" the problems of inequality simplification! Covers tricky complications such as swapping inequalities, understanding constraints, working with negative numbers, and working with zeros in equations. Po...
In this tutorial the instructor shows how to write a Slope-intercept equation that is perpendicular to a line and passes through a point. He shows how to do this by solving an example with sample values. He says that the slope of a line perpendicular to the original line is the negative inverse of the slope of original line. Now he writes down the slope value in the general equation y = mx + c, and by substituting the sample value in the equation he obtains the value of the Y-intercept c, thu...
It’s just a few steps to make a toy motor. Take a battery of any brand, then take two safety pins. Attach them to both the sides of battery as they act as positive and negative. Then take a magnet, keep it on the battery. Now take a strip, which is rolled into a circle, and take two leading wires from it. Then keep this strip in between the safety pins and just start it up by rotating to one side. Then leave it aside, it rotates continuously.
This video teaches you a couple of tricks on installing crown molding, base boards, and casing. The tutorial advises the use of a negative rake blade to ensure a smooth cut. As always, you'll want to measure twice and cut once, but as far as your limbs go, don't cut those at all.
Like a lemon, a potato can produce electricity. This science experiment was prepared by Ebtisam Al Anzoor and demonstrated by Mustafa Daif. The electricity is proven using an analog micro ameter. The positive is copper from a penny or copper coin while the negative is a galavanized nail. The potato releases a charge and is further proven when it is connected to a calculator. You can daisy chain the potatoes for a greater charge.
Hey, cheer up! The Achievement Hunters are here to show you the best way to earn the No Hard Feelings achievement in Portal 2 for Xbox 360. Watch this video guide to Portal 2 and learn how to raise your Xbox 360 Gamerscore by earning this achievement.
Need an electric outlet and don't have one? No batteries on hand, either? Well, then you should use the next best thing - potatoes! In this tutorial, learn how to make that old science fair staple - the potato powered calculator! Check it out, it really works!
In general, the internet can be a cruel place, and Instagram is no exception. Most of the time, the platform is a fantastic way to share and view unique and creative content, to reach an audience of both fans and friends. People can step out of line and harass or bully others on posts to the detriment of the entire community. However, this type of commenting won't be sustainable for much longer.
Being the bearer of bad news is unpleasant; there's nothing more uncomfortable than offering up a spoonful of negativity. Whether you're a supervisor who spends a lot of time interviewing and rejecting candidates, or simply someone who has to say "no" to a friend, it's never fun to break bad news. But sharing unpleasant words or feedback with another person can become less of a burden with a few simple steps.
Volume markings on large pots and mixing bowls make life so much easier. They cut out the step of measuring and save you the trouble of washing measuring cups. However, there aren't many containers out there that actually have volume markers in them.
Digital video looks very sharp, but many people miss the feeling that they got from watching films that were filmed on film. This video will show you how to replicate the look of old film without having to actually shoot on it using a bleach bypass in Final Cut Express. Working with film is hard, so watch this video and inject some of that organic feeling back into your movies.
Learn how to ask how someone is feeling and how to respond to them in Mandarin Chinese, with this language tutorial. This video lesson teaches you to ask someone if they are hungry, thirsty, tired, or hurt in Mandarin Chinese.
While there's an art to surviving the all-nighter, there's also an art to staying awake throughout the day when you're operating on little to no sleep. In 1964, the record for sleep deprivation was set by 17-year-old Randy Gardner, who stayed awake for an incredible 264 hours and 12 minutes. Now while we're not out to challenge Randy for his title, we can certainly look to him for inspiration in beating back our own fatigue.
On Yay Math, Robert Ahdoot, founder of Yay Math, will show you some square root functions and some inequalities. He begins with the problem y=x². Then he makes a sketch with two intersecting lines in a t shape. The problem is illustrated by a curved U shape, the U's bottom resting on the horizontal bar, which represents x, while the center takes the vertical line. The vertical bar represents y. This U is directed up because the x² is a positive number. If the number were negative, the U would...
Getting angry makes you look weak, especially in an argument. Defuse your temper with these helpful tips.
You know this is the job for you. Here’s how to convince the person doing the hiring. Learn how to do well in a job interview.
In this video, we learn how to remove the dashboard and wheel to replace bulbs. First, remove the negative battery cable, then remove the steering wheel. Next, remove the cluster bezel, with Phillips head screwdrivers for the screws. Pull back on the bezel and remove the clips from the bottom by prying it apart. Remove the cluster next, followed by the top piece of the steering wheel joint. Once this is removed, you will be able to slide the cluster out and squeeze the cables to remove it. Fr...
Put down that cigarette and save yourself your money (and even your life) with The Swish Pattern method! This can even be adapted to learn how to quit any of those bad habits like biting your nails or even be used to shed a few pounds. You first visualize yourself and what you do when before you indulge in your bad habit (called the queue image). Then you think about yourself free of that habit and how you wish you could be. Now when you get the urge to smoke/eat/etc... Make the ideal image "...
In this video the tutor shows how to use the Mac Speech Dictate with the built-in mic. Mac Speech Dictate is a program that you talk to and it writes for you. Its a dictation tool to which you can dictate and the application writes for you. The negative part about it is that it does not support built in microphone. This video shows how to make it change and work with the built in mic. To do this other than the MacSpeech dictate you will need the Soundflower tool. Soundflower is a really small...
So, your children have the same old boring Fisher-Price Power Wheels that all the other kids on the block have. Do you really want your child to be like all of the rest? No, I didn't think so. Turn those miniature Power Wheels, Dumar or Peg Perego vehicles into a little bit of realism, if you can handle it. All it takes is a little modification and you'll be wishing you were five again. With a few simple hacks, your son and daughter will be burning rubber, jumping curbs and burying those othe...
Are you feeling under the weather? When you are feeling sick, or cold, there is nothing more comforting than a bowl of chicken noodle soup. In this tutorial, Betty makes her favourite soup from scratch, using left over chicken pieces. Betty's soup is low in fat and calories and is guaranteed to make anyone feel better.
