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19. Functions and variables


Great job! Let's get back to functions.

Up until now, we've been passing in hard-coded values to our functions, but variables can also be passed in as arguments. For example, if a person's body weight of 85.4 kilograms has been saved in a variable named weight, then that variable can be used in the round function, like so


Here, the value stored in the variable weight is used within the function for x and is rounded to the nearest integer value. The function then returns the value 85.


We've defined a variable named weight_pounds to represent Tanya's weight in pounds. Round the value stored in this variable to the nearest integer.