www.reference.com/article/parallel-lines-ea91c8fd1732fc5d

Parallel lines are defined as lines that are equal distance apart and never touch. Being an equal distance apart is also known as equidistant. Parallel lines always point in the same direction.

www.reference.com/world-view/parallel-lines-important-f774ed8469281b53

Parallel lines are important in mathematics because they are at the base of several conjectures involving angles in geometry. Drawing a line, called a transversal, through a pair of parallel lines forms three different types of angles that have known mathematical properties.

www.reference.com/article/parallel-line-look-like-3544a1e88549dece

Parallel lines are two lines that are the same distance apart along their length. They never touch one another. They look like the outer lines of a road or the edges of a rail track.

www.reference.com/article/equation-line-5aaca40b6aa91c64

To find a line's equation, identify two of the points through which the line passes, and then use the "x" and "y" coordinates to find the slope of the line, or the rate at which it climbs or falls. Use the slope to find the line's intersection with the y-axis.

www.reference.com/world-view/real-life-examples-parallel-lines-a44a0c01416e0ff3

Parallel lines exist everywhere in everyday life, including on the sides of a piece of paper and the way that the shelves of a bookcase are positioned. Parallel lines are two or more lines that when drawn out infinitely long never intersect.

www.reference.com/article/write-equation-line-8e7195efc14d604a

Find the slope of the line (m), and the place where the line crosses the y-axis, known as the y-intercept (b), to write the equation in slope-intercept form, y = mx + b. Use the equation to find the y value for any x on that line.

www.reference.com/article/steps-proving-lines-parallel-13b2c81c21658e8

Parallel lines are lines along the same plane that never intersect, even though they are of infinite length. If you are working on a construction project, it is important to make sure that segments that are supposed to be parallel actually are. To prove that two lines are parallel, you need a square

www.reference.com/article/construct-parallel-lines-12f41e881f3166e1

Parallel lines are lines that never cross each other. The key to constructing parallel lines is to know that they have the exact same slope.

www.reference.com/article/equation-line-re-given-two-points-53480b759dbfd1b2

The way to calculate the equation of a line that includes the points (x,y) and (x1, y1) is to plug them into the equation y - y1 = m(x - x1) and solve for m, the slope of the line. The way to convert this to y = mx + b form is to plug one point and the slope into the same equation and solve for y.

www.reference.com/article/many-pairs-parallel-lines-square-18531f4370fb74a8

A square has two pairs of parallel lines. This makes it a parallelogram, which is a four-sided polygon with two pairs of parallel sides, each pair being equal in length. A square is a kind of parallelogram whose sides meet at 90 degree angles and are all equal in length.