Type the program's output.
[tex]
\begin{array}{l}
x=1 \\
y=2 *(x+8) \\
\operatorname{print}(x, y)
\end{array}
[/tex]
Answer (1)
The variable x is assigned the value 1.
The variable y is calculated as 2 ∗ ( x + 8 ) = 2 ∗ ( 1 + 8 ) = 18 .
The print statement outputs the values of x and y separated by a space.
The program's output is 1 18 .
Explanation
Understanding the Program We are given a simple program consisting of two assignment statements and a print statement. The first assignment statement sets the variable x to 1. The second assignment statement calculates y as 2 ∗ ( x + 8 ) . Finally, the print statement outputs the values of x and y , separated by a space. Our goal is to determine the output of this program.
Calculating the Value of y First, we evaluate the expression for y . We have x = 1 , so we substitute this value into the expression for y :
y = 2 ∗ ( x + 8 ) = 2 ∗ ( 1 + 8 ) = 2 ∗ 9 = 18 .
Therefore, y = 18 .
Determining the Output The print statement outputs the value of x followed by a space and then the value of y . Since x = 1 and y = 18 , the output will be '1 18'.
Examples
Understanding how variables change and how print statements work is fundamental in programming. For example, if you are writing a program to calculate the area of a rectangle, you might assign the length and width to variables and then use a print statement to display the calculated area. This simple program demonstrates the basic principles of variable assignment and output, which are essential for more complex programming tasks.
