 |
| ||
| |||
|
| Math Central | Quandaries & Queries |
|
Question from antoinette, a student: the equation of a line passing through the points (2,6) and (2,9)? |
Antoinette,
Every point in the plane with x-coordinate 2 lies on the line. Every point in the plane with x-coordinate not 2 does not lie on the line. Thus we have a description of the points in the plane which are on the line, they are precisely the points with x-coordinate 2. Thus the equation of the line is
x = 2.
Penny
| ||
| ||
| ||
 |
 |
|
Math Central is supported by the University of Regina and The Pacific Institute for the Mathematical Sciences.