When regression line passes through the origin then............?

(i) When the circle passes through the origin.

D.E. of lines, passing through the origin, is

The vector equations of a line passing through the origin and the point (5,-2,3) is

Which of the following straight lines passes through the origin?

Write down the equation of line passing through origin.

Let X and Y be two related variables. The two regression lines are given by x-y+1=0 and 2x-y+4=0 . The two regression lines pass through the point:

The joint equation of lines passing through the origin and trisecting the second and fourth quadrant is