00:02
Based on the table, does the quantity supplied change with the price? so, let's take a look.
00:07
We can see that our quantity supplied remains the same for each price.
00:16
The price of coke is 3.
00:18
When the price of pizza increases from 11 to 13, calculate price elasticity of demand using the midpoint method.
00:33
So, we need to use percentage change in quantity demanded over percentage change in price.
00:41
So, we're going from the price from 11 to 13.
00:52
So, using the midpoint method, we're going to find the difference.
00:59
So, when the price goes from 11 to 13 and the price of coke is 3, the quantity demanded goes from 30 to 22.
01:12
So, we're going to find the change.
01:15
So, we do 22 minus 30 over the average.
01:22
We do 22 plus 30 divided by 2.
01:30
So, that's percentage change in quantity demanded.
01:32
So, that goes on top.
01:34
And then we have the change in price.
01:37
So, we have 13 minus 11 and then we're going to add them together and find the average.
01:47
So, we get negative 1 .8 and we can report it as a positive number as it's usually reported this way.
01:59
Find the equilibrium price when the price of coke is 3.
02:03
So, we look at column 2.
02:06
We need to determine when quantity demanded is equal to quantity supplied.
02:10
You can see that they are both 30 at the price of 11.
02:14
So, therefore, the equilibrium price would be 11...