A function MyFct has an input [tex]$x$[/tex] and an output [tex]$z$[/tex]. What does MyFct return?
A. [tex]$x$[/tex] only
B. Nothing
C. [tex]$x$[/tex] and [tex]$z$[/tex]
D. [tex]$z$[/tex] only
Answer (2)
The function MyFct takes an input x and produces an output z .
The question asks what MyFct returns.
'Returns' in the context of a function means the value that the function outputs.
Therefore, MyFct returns z only .
Explanation
Understanding the Problem We are given that a function MyFct takes an input x and produces an output z . The question asks what the function MyFct returns. In the context of functions, the term 'returns' refers to the value that the function outputs. Since the function takes x as input and produces z as output, it returns z .
Determining What the Function Returns The function MyFct receives x as input and produces z as output. The question is what the function returns. The term 'returns' in the context of a function means the value that the function outputs. Therefore, MyFct returns z .
Final Answer Therefore, the function MyFct returns z only.
Examples
In computer programming, functions are used to perform specific tasks. For example, a function might take a number as input, perform a calculation on it, and then return the result. Understanding what a function returns is crucial for using it correctly in a program. If a function is designed to output a specific value based on its input, knowing this output allows programmers to use the function effectively in larger programs. This concept is fundamental in software development, where functions are building blocks for more complex systems.
The function MyFct returns z only, as it processes the input x and outputs the value z . Therefore, the correct answer is option D. Understanding a function's return value is important in both mathematics and programming to use it effectively.
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