00:01
Now here you have two points.
00:02
One is p with coordinates.
00:05
The first one p is 1, 2, 3.
00:08
And there's another point with coordinates minus 5, minus 1, and 12.
00:17
And what is the meter point, johnny piano q? well, the meter point joining piano q, let me call it x.
00:25
So you have x, y, z, right? so you have this kind of coordinates, x, y, d.
00:37
You ask what is the meter point? so the midpoint has to satisfy this relation, right? that is x minus 1 divided by minus 5 minus x.
00:50
And this must be equal to 1, right? and similarly, y minus 2 over minus 1 minus 1, minus y, must be.
01:00
Equal to 1, right? and similarly, for the z, you have the z minus 3 over 12 minus t, this must be 1 as well, sorry, is 1, right? so from these three equations, you can use your work out x, y, z, and that gives you the, locates the meter point, johnny, p, and q, right? and what is the point on the line segment, connect p and q, that's two thirds of the way from p to kill...