Question

On a graph paper, draw a line parsllel to the X-axisorY-axis.Write coordinate of any four points on the line, Write how thw equations of the line can be obtained from the coordinates.
[Intead of parallel lines, lines pssing through the origin or intersecting XorY-axis can also be considered]

Answer 1

Four points are $(1,2),(1,1),(1,0),(1,-1)$ on the line

Now equation of line between $(1,0)$ & $(1,1)$

$y-0=\frac{1}{0}(x-1)$

$x=1$

Now equation of line between $(1,2)$ & $(1,-1)$

$y-2=\frac{-1-2}{0}(x-1)$

$x=1$