Python Functions

Python Functions - Important Points

21.		What is the output of the following code? def my_function(x, y):return x + y result = my_function(y=2, x=3) print(result)

A. 5

B. 2

C. 3

D. 1

View Answer Discuss Work Space

Answer: option a

Explanation:

The my_function function takes two arguments x and y, and returns their sum. In this case, the arguments are passed by keyword, so their order doesn't matter. The function is called with x=3 and y=2, so the output is 5.

22.		What is the output of the following code? def my_function(x, y):return x * y numbers = [1, 2, 3, 4] result = 1 for number in numbers:result = my_function(result, number) print(result)

A. 10

B. 24

C. 8

D. 1

View Answer Discuss Work Space

Answer: option b

Explanation:

The my_function function takes two arguments x and y, and returns their product. In the main code, a list of numbers is defined, and the product of all the numbers in the list is calculated using a loop and the my_function function. The initial value of the result variable is 1, so the final product is 1 * 2 * 3 * 4, which is 24.

23.		What is the output of the following code? def my_function():global x x = 3 x = 5 my_function() print(x)

A. 3

B. 5

C. 8

D. Error

View Answer Discuss Work Space

Answer: option b

Explanation:

The my_function function declares the variable x as global, and assigns the value 3 to it. In the main code, a variable x is defined with the value 5, and then the my_function function is called. The function modifies the global variable x, and assigns it the value 5. When the print statement is executed, the value of x is 5.

24.		What is the output of the following code? def my_function(x): return x ** 2 numbers = [1, 2, 3, 4] result = map(my_function, numbers) print(list(result))

A. [1, 4, 9, 16]

B. [2, 4, 6, 8]

C. [0, 1, 4, 9

D. Error

View Answer Discuss Work Space

Answer: option a

Explanation:

The my_function function takes a single argument x, and returns the square of x. In the main code, a list of numbers is defined, and the map function is used to apply the my_function function to each number in the list. The result of the map function is a map object, which needs to be converted to a list using the list function. The resulting list contains the square of each number in the original list, which are 1, 4, 9, and 16.

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