# Loci

We will discuss here about the basic concept of loci with two examples.

Consider a point that is moving in a plane. If we join each of the positions through which the moving point passes, we will get the path followed by the point. If the movement of the point is random, its path will be irregular, and we shall not be able to predict, for example, how its path will look when the point stops. Therefore, the path of a randomly moving point cannot be determined. On the other hand, if the point’s movement obeys a given set of rules, the resulting path will be predictable and can be a circle, a straight line, an ellipse, and so on.

So, you can look upon a circle, a straight line, and so on, as a set of points positioned according to a given rule or rules.

Definition of locus: A path consisting of a set of points whose location is governed by some definite rule of rules is called locus. Locus in Latin means “position” or “location”.

Examples:

1. Let a point P move in such a way that it is always at a constant distance, r, from ma fixed point O.

The locus of a point P is a circle which has its center at O and has a radius equal to r units.

2. Suppose a point P moves so that it is at a constant distance d from a fixed straight line AB.

The locus of P consists of two straight lines, parallel to the fixed straight line AB, lying on both sides it at a distance of d units from it. Here, the locus of P is the pair of straight lines CD and EF.

Loci

From Loci to HOME

Didn't find what you were looking for? Or want to know more information about Math Only Math. Use this Google Search to find what you need.

## Recent Articles

1. ### Types of Fractions |Proper Fraction |Improper Fraction |Mixed Fraction

Jul 12, 24 03:08 PM

The three types of fractions are : Proper fraction, Improper fraction, Mixed fraction, Proper fraction: Fractions whose numerators are less than the denominators are called proper fractions. (Numerato…

2. ### Worksheet on Fractions | Questions on Fractions | Representation | Ans

Jul 12, 24 02:11 PM

In worksheet on fractions, all grade students can practice the questions on fractions on a whole number and also on representation of a fraction. This exercise sheet on fractions can be practiced

3. ### Fraction in Lowest Terms |Reducing Fractions|Fraction in Simplest Form

Jul 12, 24 03:21 AM

There are two methods to reduce a given fraction to its simplest form, viz., H.C.F. Method and Prime Factorization Method. If numerator and denominator of a fraction have no common factor other than 1…

4. ### Conversion of Improper Fractions into Mixed Fractions |Solved Examples

Jul 12, 24 12:59 AM

To convert an improper fraction into a mixed number, divide the numerator of the given improper fraction by its denominator. The quotient will represent the whole number and the remainder so obtained…