$\"\"$

The points are $\"\"$ , $\"\"$ and $\"\"$ .

Consider the points $\"\"$ , $\"\"$ and $\"\"$ .

If $\"\"$ and $\"\"$ are the two points then the component form of a vector is

$\"\"$

If $\"\"$ and $\"\"$ are the two points then the component form of a vector is

$\"\"$

The above two vectors have a common initial point.

So, the points $\"\"$ and $\"\"$ are lies on the same line.

They are parallel because $\"\"$ .

So the points are collinear.

$\"\"$

The points are collinear.