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Straight Line

The equation of straight lines is generally written in the form:
Y = mx + b; or
Y = mx + c;
Where ‘m’ is the Slope (gradient) of a line, slope and gradient both are same term.
And ‘b’ is the y- intercept.
Now we see how to find the value of ‘m’ and ‘b’;
If we want to find the value of ‘b’ then we need to find where the line intersects the y- axis. Than we are find the value of ‘m’:
We know that ‘m’ is the Slope of line, and then the value of ‘m’ is:
m =
Suppose change in ‘y’ is 4 and change in ‘x’ is 1 then we can find the value of ‘b’ and slope;
We know that slope of line is:
m =
So put the value in the given formula:
m =
So the slope of the line is 4 and the value of b is 1.
So the equation of line by putting the value of slope and b is:
We know that the equation of line is:
Y = mx + b;
Put value of slope and y- intersect we get the equation of line.
Y = 4x + 1;
Now we will see slope of the straight line.
Suppose the coordinates of a Straight Line is x­1, x­2 and y­1, y­2 and ‘m’ is the Slope of a line, and then we use following formula for finding the slope of a straight line.
m =
Suppose we have the values of coordinates is (2, 5) and (6, 8), then by using these coordinates find the slope of a line.
We know that the slope of a straight line is:
m =
Now put the values of these coordinates we get:
m =
So the slope of a straight line is:
m =
So the slope of line is 0.74.

General form of Straight Line

The equation of the straight line can be defined as the linear Relations between the  two variables x and y, which satisfy the coordinates of each and every Point of the coordinates which exist on the line but does not satisfy any other point in the  Cartesian plane. The general equation of a Straight Line is Ax + By + c = 0, where we say that ‘x’ and ‘y’ b...Read More

Parametric Equation of Straight Line

A line is 1-Dimensional geometric shape formed by a Point extend along a fixed direction and the reverse direction without end. Line is a figure which has no width. A Straight Line is defined as the shortest distance between any two points on a plane.

In coordinate Geometry, line is defined by the coordinates. These are the two Numbers, x-coordin...Read More

Distance from point to straight Line

A line which is not in form of a curve is a Straight Line. As we know the equation of a straight line is given as:
Y = mx + b; or
Y = mx + c;
Where, ‘m’ represents the Slope (gradient) of a line.
And ‘b’ is the y- intercept.
Now we will see the formula for the distance from a Point to a straight line. The general equation is given as:

Angle between Straight Lines

Arc formed by two rays or line segments sharing a common endpoint is defined as the angle. The size or measure of an angle is determined by the magnitude of the smallest rotation that occurs by one line over the other. Two angles having same measure are called as congruent angles.
A line is an entity which joins any two points in a plane. It is a one dimens...Read More

Straight Line Depreciation

Straight line depreciation method is used to evaluate the falling value of properties over time. This method applies over a depreciated value that is adjustable, which is much different from the accelerated depreciation where the original value of goods is considered for calculating depreciation.
Although we have several methods for calculating depreciation, ...Read More

Equation of Straight Line with Slope

A line is one-dimensional geometric figure formed by a Point extend along a direction and the reverse direction without end. It has no width. A Straight Line is the shortest distance between any two points on a plane. To understand How to define a line we use the following figure of a line.

In the above figure, the line PQ passes through the po...Read More