true
true
True
The two foci are necessary to define the location of an ellipse, but the shape depends on the eccentricity, which is related to the lengths of the two axes.
In Newtonian three dimensional space, two points can create a line, three to "define" it. In Einsteins "time-space", a minimum of four points are required.
yes, three points in the least number of points that can be used to define a plane. if you used two points you would only have a line, and one point is a point
true
true
It can allow you to define shapes but that is not quite the same thing as an object.
It allows you to measure distances between two points.
Circle
The foci (plural of focus, pronounced foh-sigh) are the two points that define a hyperbola: the figure is defined as the set of all points that is a fixed difference of distances from the two points, or foci.
Yes
4 points define a plane.
No, 2 points define a line, 3 points define a plane.
No, two points define a line. It takes three points to define a plane.
True
Two points.