00:01
Okay, we're given a supply and demand equation, and we want to know where the intersection pointed.
00:17
Okay, so your steps for this one, you're asked to use a graphing utility to do this.
00:23
And so the easiest way is to go, take these peas away.
00:28
And the first one put into y1 of your graphing utility, and then the second one put into y2.
00:36
Now, when you graph this initially, if you have a normal viewing window, your lines are going to look like this.
00:43
It's just going to be one line here and one line here.
00:48
And the reason that is, is these slopes are just so small.
00:51
So to be able to see where the intersection point is, you need to change your viewing window.
00:57
And for your viewing window, the x -men, you can just leave at negative 10.
01:01
That's fine.
01:03
But it's your x -max that needs to change.
01:05
And i went through a couple of them until i could see the intersection point and it happens at x equals 2000.
01:13
So go ahead and change your viewing window to x equals 2000 and then hit the graph button and you'll see your graph.
01:22
So i'll kind of show what my graph looks like.
01:27
It has my orange coming down, my purple coming up here...