Define a point?

Answer 1

From google define:

a geometric element that has position but no extension; "a point is defined by its coordinates"

On a graph a point can be seen as an exact value on both axis. A line would be seen as an exact value of one axis and a ranged value on another. (Thus the extension meaning from the google definition)

Answer 2

Point, as line or plane, is an elementary concept in geometry, it cannot be formally defined. As Hilbert pointed out, geometry may treat things, about which we have powerful intuitions, but it is not necessary to assign any explicit meaning to the undefined concepts. The elements, such as point, line, plane, and others, could be substituted by tables, chairs, glasses of beer and other such objects. It is their defined relationships that are discussed and explored, regulated by axioms and deduction rules. Hilbert's approach signalled the shift to the modern axiomatic method, where axioms are not taken as self-evident truths. It is much like a game, with procedural rules.

Answer 3

A point is simply a location in space. It has no size:thart is, it has no width, no length, and no height. Although it has no size, we usually indicate a point by a period or small dot and give it a name of a capital letter such as A.

A straight line is made up of an infinite number of points. A straight line has only one dimension: length When two straight lines intersect (cross each other) the place where they intersect (cross) is a Point.

Answer 4

If X and Y are axes (could be orthonormal and generally are, but don't have to be) in a vector space, convention is that you can represent a "point" in this space according to axis values like (X = 1, Y = 3) or, more concisely, (1,3).

Answer 5

Point is considered an undefined term, as are line and plane. Therefore no (mathematical) definition exists. If you need a non-mathematical definition, look in any dictionary.

Answer 6

a representation of a defined position in space. (2d, 3d ...)

when you define a point, you give a location

Answer 7

A line is the shortest distance between two points
A point is THE shortest line.

Answer 8

List of point definition > http://www.google.com.my/search?hl=en&lr=&defl=en&q=define:point&sa=X&oi=glossary_definition&ct=title

Answer 9

it's the intersection of two non parallel lines, with no dimensions. (If talking about euclidean geometry)