How do I make a curve? Simply explained

I need to create a curve to show the vet. Can someone please direct me to a simple explanation on how to do it using the spreadsheet (which I don't fully understand yet either, lol)? Thanks

 

A curve is just testing every 2 hours for 12 hours from shot to shot...you don't have to have any special chart, graph or anything

That's all your vet is talking about

 

So even if he's not getting any shots, just every 2 hours? Do I need to get the first one before he eats the first time? Because my husband usually feeds him first thing and he won't do it.

 

If he's not getting any insulin, I'm not sure why your vet wants a curve, but generally, you want to test before feeding