It is important to program your code efficiently. Efficient code does not include duplicate code that performs the same procedure. Functions are helpful in making code modular.

Respond to the following in a minimum of 175 words: 

It is important to program your code efficiently. Efficient code does not include duplicate code that performs the same procedure. Functions are helpful in making code modular. How can functions reduce the amount of written code and make code easier to read/follow?

Provide a code example that supports your comments.