You can define some things in terms of other things, but you will always need some starting point, something that is not formally defined. It makes sense to put "point" in this category. However, you can think of a point as an "object" that has zero length, zero width, and zero height.
focus
What term?
The line and the point define a plane.
There are two points: the foci.
focus
All of the points on a parabola define a parabola. However, the vertex is the point in which the y value is only used for one point on the parabola.
for me i have strongest point of view
focus
What term?
Point
A point.
The line and the point define a plane.
Define point of view in your question
There are two points: the foci.
focus
i think its the vertex.
It's the focus LOcs!!