Subroutines - Application Questions

What will be the output of this function call?

• 7
• 12
• 34
• None

Answer explanation

3 multiplied by 4 is 12, and the function returns this value.

What is output of this code?

• Hello
• Alice
• Hello Alice
• Hello name

Answer explanation

The print statement combines 'Hello' with the name 'Alice'.

Which variable is local to the function?

• calculateTotal
• tax
• price
• return

Answer explanation

tax is declared inside the function and exists only there.

How many arguments are passed into the subroutine ?

• 0
• 1
• 2
• 3

Answer explanation

Two parameters mean two arguments must be passed in the call.

What will the code output?

• 10
• 25
• 5
• 2x

Answer explanation

The function multiplies 5 by 2 and returns 10.

What is the purpose of using parameters in subroutines?

• To store data permanently
• To allow the subroutine to access user input
• To pass values into the subroutine so it can use them
• To speed up the program

Answer explanation

Parameters allow data to be passed into subroutines when called.

Which line shows a function call with arguments?

• def add(a, b):
• print('Hello')
• add(3, 5)
• return a + b

Answer explanation

The function call 'add(3, 5)' passes two arguments to the function.

Fill in the blank to define a function that takes one parameter:

def greet( (a)   ):

print("Hello", name)

Answer explanation

The parameter used inside the function must be named in the header.

Fill in the blank to return a calculated value: def square(x): (a)   x * x

Answer explanation

Use the return statement to give back the result.

Fill in the blank to call a function named calculateTotal with arguments price and tax: total = (a)  

Answer explanation

Function call syntax: functionName(arg1, arg2)