Melody

Alan, can you please explain your very first line.

That is where I got lost.         

Thanks for sharing that video, it is a really easy to understand method for solving the problem in the video. (I will try and remember it)

This problem is not the same though.  

Thank you, that would be good.  

That is an impressive answer JKP.

Did you do it yourself?

I've just seen some of your other answers, I think I have underestimated your abilities.  Sorry.

Maybe you can already produce a pic like this yourself.

If you do not already have the skill, try playing with GeoGebra. 

Geogebra is a free program, it is what I use for most of my illustrative pics.

It took me a while to learn, and I am still learning, (just trial and error) but it is really fun to use.

It is not a big deal.

I often sound harsher than I mean to.

I am just trying to get you, and everyone here, to think about why they are providing answers.

I can white-out your answer but there is really no need to do so. 

You are leaving a very positive mark for yourself in this forum.  

Thanks for all your answers.

Why is everyone so keen on doing all this kid's homework.

Why couldn't you discuss it without giving exact answers?

Thanks JKP

I know you got the pic from somewhere and it is a good diagram.   Give yourself a point   

Later on, when you are able to draw such a pic yourself it would be better if there were actual number points on the diagram.

It makes it much easier for kids to understand what is going on.

Please do not override other people's solutions unless you have a good reason.

Catmg left the answer unfinished for a good reason.  She/he wanted guest to finish it for themself.  

It helps some people enormously when they understand that the distance formula IS JUST Pythagoras's theorem.

The distance in the y direction, y2-y1  IS  the vertial rise.  And x2-x1 IS the horizonal distance

If anyone wants me to explain better I can. Just ask.