A Firm Uses a Single Input to Produce Its Output

question 20

Multiple Choice

A firm uses a single input to produce its output, which is sold in a competitive market.It gets quantity discounts on purchases of its input.If it buys x units of the input, the price it must pay per unit of input is 289/x + 3.If it buys no inputs, it doesn't have to pay anything.The firm's production function is f(x) = 45x - x².If the price of the firm's output is 1, the profit-maximizing amount of input to buy is

• A)21.
• B)0.
• C)42.
• D)31.50.
• E)None of the above.

---

Definitions:

JFrame

A class in Java Swing used to create a window where components like buttons, text fields, panels can be added.

Java GUI Application

A Java program that uses the Graphical User Interface to interact with users, typically involving windows, buttons, and text fields.

Label

A user interface component used to display text or images on a screen, often within windows or web pages.

Button

A button in GUI development is a user interface element that can be clicked or tapped by the user to perform an action.