How do you define a function in Python?1 pointdef my_function():function my_function():define my_function():func my_function():

In Python, you define a function using the "def" keyword. Here is the step-by-step process:

1. Start with the keyword "def" which tells Python that you are about to define a function.

2. Follow "def" with the name of your function. In your example, the function name is "my_function". Function names should be lowercase, with words separated by underscores as necessary to improve readability (this is known as snake_case).

3. After the function name, put parentheses "()" and then a colon ":". If your function takes any arguments, you would put their names, separated by commas, inside these parentheses.

4. Indent the next line with a tab or four spaces. This is where you write what you want your function to do. This is called the function body.

5. End the function with a return statement if the function should output something. If no return statement is provided, the function will return None.

So, the correct syntax to define a function in Python is:

def my_function():
    # function body goes here
    # optional 'return' statement goes here

The other options you provided ("function my_function():", "define my_function():", "func my_function():") are not valid syntax in Python.