two points form a line. (x1,y1)(x2,y2)
no 2 points form a line, 3 points form a plane
one point can form a line! horizontally or vertically... but a line doesn't need any points.
Normally a straight line segment.
Any three points which do not form a line.
Points on an axis connected to form a line
No. Any two points can be made to form a line.
a straight line
A plane is named by three points in the plane that is not on the same line.
To prove that three points are colinear, pick two points and form the equation of the line they describe, and then see if the third point lies on that line.
To find the equation in standard form of the line that contains points C and D, you first need the coordinates of those points. The standard form of a line is expressed as Ax + By = C, where A, B, and C are integers, and A should be non-negative. Using the coordinates of points C and D, you can calculate the slope and use the point-slope form to convert it to standard form. If you provide the coordinates of points C and D, I can help you derive the equation.
only two points are required to form a line .One is the starting point and other is the end point
One line only. This is because by definition a line only needs two points. Three points not in a line would make a plane when connected. Two points, when connected, form a line in which there is only one way to pass through points a and b.