00:01
So here we're talking demand and we're given a demand curve, right? and if i sketch out that demand curve between the quantity and the price, we see that it's downward sloping and linear.
00:12
And we have a couple points on it, right? at a price of $2, the quantity is 10.
00:18
And at a price of 150, the quantity is 20.
00:24
And at a price of one, the quantity is 30.
00:27
So you can see the slope here, right? the slope is equal to if you go over 10, right, plus 10, plus 10, you are going down 50 cents.
00:43
So minus 0 .5.
00:45
So the slope is sort of minus 1 over 20.
00:48
Each dollar you lower the price is going to increase the sales by 20.
00:55
That's the trade -up, right? so we can think of sort of extending this pattern, right, of extending this pattern to tackle the other parts of the question that we don't have.
01:09
Right...