What's the name of the quantity a - c over 2b?

这个(a-c)/2b叫什么
Once we escape the algebra just think about it in terms of economics.

不是数学的术语是经济学的术语
Let's think about it a bit, let's go back to the previous picture.

好好想想再看看前一张图
If Player 2 is producing nothing, then what is Player 1 effectively?

参与人2产量为0 参与人1会怎样呢
He's a monopoly; so she's a monopolist,

她会形成垄断
so we know how to figure out monopoly quantities

我们都知道如何计算垄断产出
from what we did in 115 or equivalent courses.

在115或者类似课程中都学过的
Let me finish the picture here; here's my demand curve,

先把图画完这条是需求曲线
here's my constant marginal cost at c,

这个是边际成本常量c
and I want to use this picture on the left now

下面我们通过左边的图像
to figure out what the monopoly quantity is.

来找出垄断产量
Can anyone tell me? Let's cold call somebody again.

谁来说我再随便找一个人吧