Function Parameters

Functions with Parameters

By Andrés

Multiple Choice

What is the correct way to declare a variable in Python?

• int x = 10

• let x = 10

• var x = 10

• x = 10

Multiple Choice

Which of the following is not a valid variable name in Python?

• my_var

• var123

• 123var

• _var

Multiple Choice

What will be the output of the following Python code?

x = 10

y = x

y = 5

print(x)

• 5

• 10

• 15

• None

Multiple Choice

What is the purpose of the input() function in Python?

• To take input from the user.

• To display output to the user.

• To perform mathematical operations.

• To declare a variable.

Multiple Choice

What will be the output of the following Python code?

x = input("Enter a number: ")

print(x * 2)

• The input number multiplied by 2.

• The input number repeated twice.

• An error.

• None of the above.

Does all machines work the same?

Do they need more information to do what they are intended for?

​

Machine's Parameters

comp_energy(5)

greetings()

What is the difference?

input("What is your age?")

print(answer)

How do you use parameters?

Let's practice...

In pairs, explain each line of the following function. Also, answer the following questions:

1. What does the function do?

2. What information does the function need or require?

3. What is the result?

4. Which Datatype does the result belong to?
   

How do you use parameters?

Activity

• ​Now that you created a function that greets the user, define the three elements that you use the most in your daily life.

• After, try to find how much energy is saved when these items are recycled.

• Create a function to calculate the energy savings for each item.

Example