Practice quiz with functions, but functions are later in the course(?)

This is the third time this has happened and I don’t know if I am doing something wrong(?).

At the end of each lesson there is a practice quiz, the problem is that I am asked to write a function…

Write a function called largest_number that takes three integer inputs, x , y , and z . Have this function, as its name implies, return the largest of the three numbers.

…but I don’t know anything about how to write it.

Am I missing any pieces? Do we practice functions even though they are covered later in the course?

Is this in the Python 3 course? Do you have a link?

You can always submit a course suggestion or bug report.