Answer:
We are given that a manufacturer sells a product as $2 per unit.
Quantity = q units
So, Total revenue =
![\text{Cost per unit} * quantity](https://img.qammunity.org/2020/formulas/mathematics/college/xetpjjam8whu7feyj4dq2n54sr6nozz83x.png)
Total revenue =
![2q](https://img.qammunity.org/2020/formulas/mathematics/college/jp1s0ecbgobajhiovva17bwu2q9g48nsdb.png)
So, the total revenue function is
![2q](https://img.qammunity.org/2020/formulas/mathematics/college/jp1s0ecbgobajhiovva17bwu2q9g48nsdb.png)
Marginal revenue is the derivative of the revenue functions
So, Marginal revenue =
![(dR)/(dq) =2](https://img.qammunity.org/2020/formulas/mathematics/college/luu5nujfwq8j5ccewrm6ln83g9zbo53ry4.png)
The marginal revenue function is 2
The constant marginal revenue function mean that the revenue earned by the addition of the output is constant.