On Line Finding Search Results

How To: Find the equations of parallel and perpendicular lines

A pair of straight lines can be parallel lines or perpendicular lines or neither. Two lines are said to be parallel when their slopes are equal. Two parallel lines never intersect each other. On the other hand two lines are perpendicular when the product of their slopes is equal to -1. Two perpendicular lines intersect only once and at right angles. So when you are given two lines and asked to find if they are parallel or perpendicular lines, first compute the slope of the lines. Identify two...

How To: Find the areas of a parallelogram and a triangle

The video teaches the viewer how to find the area of a parallelogram and the area of a triangle. For a parallelogram, the first step is to find the right angle, the line perpendicular to the base (this is a line you draw, not part of the parallelogram). The height of the line that forms this right angle with the base is the perpendicular height. Next, find the length of the base. The area is the base times the height. For a triangle, find the right angle with the base (again a line you draw)....

How To: Graph a system of linear equations

Given a equation of a line, you can graph the line. A system of equations is nothing but equations of more than one line. In a single equation all the points that lie on the line, satisfy the equation of the line. Similarly a solution of a system of equations is points that satisfy each and every equation of that system. A system of equations can have a single point as solution when the lines intersect at a common point, or have a unlimited points in solution when the lines overlap on each ot...

How To: Find the length of a segment using the midpoint II

First of all in the given question you have to write down the values of the total length of the line segment, PS=15. The length of the line segment, QR =3. Now you have to find the value of line segment RS. Because you know that the Q is the midpoint of the line segments PQ and QS must be equal. Therefore you can find out the length of the half of the segment using the midpoint. Subtract the value of QR from QS. Given that segment PS=15 and Q is the midpoint, you can conclude segment PQ=7.5 a...

How To: Write the Japanese character, "hito" meaning "human"

Writing the word “human” using Japanese characters or writing (also known as kanji) is deceptively easy. It can be completed in as little as two downward, curving strokes. Beginning from the top, draw a line downward, curving the direction of the pen or pencil slightly to the left as you go. Next, find the halfway point of the line you have just drawn. Once you have found the halfway point, draw a line from the halfway point downwards and curving slightly to the right. The end result will loo...

How To: Graph quadratic equations

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...

How To: Write and graph an equation in slope intercept form

This video teaches us the method to write an equation in slope intercept form and to graph it. The equation of line is y = mx + c. m is the slope and c is the y intercept or the point where it crosses the y axis. Let us find the equation of line if it crosses (8,6) and m=1/2. Substituting the values of x,y and m we get 6=(8)(1/2)+b. Simplifying we get b=2. Substituting the values in the equation of line, we get y = m/2 + 2. Suppose we want to find the x coordinate of a point on the line given...

How To: Determine if a point lies on a line in slope intercept

In this video the author shows how to find out if a Point lies on a Line in Slope Intercept Form. He shows it by an example where he takes a point, which is an ordered pair in the form (x, y) and a line, which is an first degree equation. Now he substitutes the values of x and y in the equation and checks if both the sides of the equation match. If it matches we can conclude that the point lies on the line. By following the method given in this tutorial you can find out if a given point lies ...

How To: Find an angle using alternate interior angles

In this video tutorial, viewers learn how to find an angle using alternate interior angles. Make sure that the angles are alternate interior angles. Alternate interior angles are angles that are on the inside of the parallel lines, and on the opposite side of the transverse. The transverse is the line that passe through the two parallel lines. If both angles are inside the line and are opposite to the transverse, then they are alternated interior angles. If you know two angles are alternate i...

How To: Measure your space when drawing a landscape

In this video, we learn how to measure your space when drawing a landscape. First you want to draw a line in the middle and measure out the line to the top of the building, and create another line there. Measure the length and then measure the edge of the outside of the building. After this, find the end point for the building and measure from the top down or from the second line to the roof, then draw the line across. Measure in from the end to get the angle, then find the layout for the tre...

How to Palm read: Explaining the right hand

This short lesson in palm reading explains the heart line on the right hand. You'll learn how to separate the life line from the heart line and see where it intersects. You'll learn that a broken heart line denotes a significant emotional change. You'll see how to determine where changes happen at certain ages in a persons life. Find out how to understand certain lines that show career changes later on in life. Learn that lines intersecting off the heart line denotes relationship changes thro...

How To: Find the slope from a set of points

To find the slope of a line you must have two points and then you must plug in the two points into the slope formula. The slope formula is m= y2-y1 over x2-x1. If the slope is a fraction be sure to reduce to the lowest. Remember if a number is divided into zero it is zero, if zero is divided into the number it is undefined. A calculator can help one remember this. Horizontal lines have slopes and vertical lines do not. Drawing the lines on a graph can help you see the actual slopes and which ...

How To: Understand and find x and y intercepts

In this tutorial the author explains about the concept of X and Y intercepts in coordinate geometry. She uses a graph consisting of a line to explain the concept. She tells that Y intercept of a line is nothing but the value of Y coordinate where the line crosses the Y axis. Similarly she tells that X intercept is the x coordinate of the point where the line crosses the x axis. She demonstrates this example using a graph tool. In this video the tutor shows how to find the X intercept and Y in...

How To: Draw a perpendicular line from a point on a line

For people who are learning how to do basic geometry, this video will show you how to draw a perpendicular line from a point on a line using only a compass and pencil. You should first take your compass and place it on the center of the point on the line, drawing an even semicircle around the point. Then, finding the points where the semicircle intersects your original line, place the center of your compass on this point and then draw some arcs over where your point is. Repeat this on both si...

How To: Replace a trimmer line

Trimmers, or as some people call them weed-whackers, need one important piece for it to work properly: the trimming line, of course. This helps cut off pieces of unwanted grass or weeds with just one single swipe and is easy to replace. In this tutorial, you'll find out how to replace trimmer line in three different devices easily. So sit back, pay attention, and good luck!

How To: Tie a fly to a fly fishing line

The most important aspect of fly fishing is the fly! In this tutorial, learn how to tie a fly to your line for fly fishing. You will learn how to attach a fly to the leader on your line. A fly isn't attached to a fly fishing line because the leader is attached to the fly line, and the fly is attached to the leader. Find out how to moisten fly line to reduce friction and strengthen the knot with help from an experienced fly fisherman in this instructional video on fly fishing equipment.

How To: Snap a diagonal chalk line

If you need to snap a diagonal chalk line on a sheet of plywood, you could hope that the hook will hold when you pull on it or try to find a third hand – or you can follow this video guide, which demonstrates a method for snapping chalk lines using a utility knife. For a complete overview of the technique, watch this free DIY tutorial.

How To: Find the vertices of a polygon of constraints

In this tutorial the instructor shows how to find the vertices of a polygon of constraints. In any optimization problem after defining your polygon you need to find its vertices. First you will have a set of equations which represents the constraints in your problem. Now you have to find the coordinates of the vertex of it by solving the optimization problem. To do that you have to start with a point and check the lines that are passing through it. Now take those lines and solve them for the ...

How To: Understand positive, negative, zero & undefined slopes

This video explains how to find the sign of slope of a line. The way shown means that you can find whether it is positive or negative without knowing its equation. It uses a simple analogy so that anyone would be able to use this method, even without much math knowledge. Being able to find the slope of a line is very important, as it leads to advanced function and calculus.

How To: Read someone's palm

Peggy Erbison shares her knowledge of palmistry in this video. The heart line starts under the pinky and moves across and up towards the middle and index finger. The next line she talks about is the head line. This line is the center line that explains how your thinking is. The line that rounds out and wraps around the base of the thumb is the life line. This line connects to the head line at the beginning. These are the 3 main lines on the palm. Contrary to popular belief, the life line does...

How To: Tie the slim beauty knot for fly fishing

Tie a double overhand knot 4" from the end of the shock tippet or other material to which you want to connect your class tippet. Gently tighten the double overhand knot, but only until it turns over and forms a figure-eight. This leaves two gaps through which you can pass the tippet material. Create a doubled section of your tippet 18". Putting a sharp angle on the tip of the doubled loop will help it pass through the figure-8. Pass the doubled tippet line through the top of the figure-8 knot...

How To: Read treble and bass clef lines and spaces

Now that you know what a staff is, how many lines and spaces are in a staff, and what the different clef's are, it's time to learn where the notes go in each one. It's crucial to understanding note placement and everything else that involves using the staff to learn the sayings for each space and line. For the Treble Clef spaces, it's "FACE", for Treble Clef lines it's "Every Good Boy Deserves Fudge", for Bass clef spaces it's "All Cows Eat Grass" and for the lines he uses "Green Birds Don't ...

How To: Make a twist turn style card

In this video, we learn how to make a twist turn style card. The card will open with a neat pop out image on the front of the card! First, get an 8 1/2 x 5 1/2 piece of card stock and then score it 2 and 3/4 inches from the left edge and 4 inches over from the left edge. Then, turn the card the other way and find the center, then score from the right end to the very first score line. Then flip the card over and score the rest of the center line up to the first line. Now, make a score line fro...

How To: Create Lunar New Year inspired tiger eyes

In this tutorial, we learn how to create a realistic looking cut using cinema makeup. This is a great look for a new year or holiday look that you want to make yourself look more unique and stand out! First, take a brow pencil and redefine your brows so they are darker and more intense. Avoid using black, most people cannot pull this look off. Now, use eyeshadow primer on the eyelids to enhance the eyeshadow color. After this, use gold eyeshadow and apply on the outer v of the eye. Then, take...

How To: Wrap text around images in HTML 4

First of all you have to open the 'notepad'. Now you have to type in "<html>" in first line. Write "<head> in second line. Write "<title>this website contains text wrapped around images</title>". In the fourth line you have to type '<body bgcolor="#999999">'. This shall add a light orange color. Now find out the name of the image. Here the name of the file is 'image.png'. Then in the next line you have to type in "<img src="image.png">this text should hopefully wrap around the outside of the ...

How To: Draw the letter "D" as a 3D block letter

Drawing the letter D as a 3D block letter is easy and fun. To start simply draw the D like you normally would. Next, you need to draw another smaller D inside the first D. From there, draw another D on the outside of the first D. Color in the 3 stacked Ds with your first color. To continue, choose a darker version of your original color. In the bottom left hand internal corner of the D draw a short line that extends at about a 30 degree angle in reference to the bottom of the D. From the end ...

How To: Understand parallel lines & transversals

This video explains the properties of parallel lines and transversals in geometry. The instructor, Robert Ahdoot, uses an analogy in which he compares lines and transversals to the streets of Manhattan, New York. Continuing with this comparison, he goes over corresponding angles of two parallel lines cut by the same transversal, also explaining when they're equal. He then shows where interior and exterior angles may be found, and then goes over whether two angels are same-side or alternate, d...

How To: Find the slope's unit of measure

This educational video from free math tutoring shows how to calculate the slope of a line and assign units to the answer obtained. This video assumes that the viewer is familiar with the concepts of axes and co-ordinate geometry. The narrator uses a commonly used formula to calculate the slope of the line in the first section of the video. In the second section, the narrator demonstrates how to assign units to the answer, as per the question asked.

How To: Find the formula of a piecewise function given a graph

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 the lines in the graph. The point-slope formula is used to identify the slope and y-intercept for the leftmost domain, which has a sloped line. A point and horizontal line make for simpler equations in the other pieces of...