00:03
The firm's marginal revenue curve would have 2 times the slope of the demand curve.
00:19
So we're given information for the demand curve.
00:25
Our slope is change in price over change in quantity.
00:31
So going from 18 to 16, quantity goes from 0 to 4.
00:39
The slope for the demand curve is negative 1 half.
00:42
So we multiply that by 2.
00:44
We get that the slope for marginal revenue is negative 1.
00:48
And the p intercept would be the same.
00:51
So therefore, b is the correct answer.
00:59
What is the profit maximizing output in price? we have to set marginal revenue equal to marginal cost.
01:15
Our marginal cost is 8.
01:22
So therefore, the profit maximizing quantity is 10 units.
01:31
And then we look at the demand curve.
01:35
We see that at the quantity of 10 units, we end up between the price of 12 and 14.
01:43
So the price is 13.
01:56
Our profit is total revenue minus total cost...