Question

functions exist in a variety of settings outside of the commonly known examples of plugging in a number and receiving a number as an output. For example, if using the letters on a keyboard and monitor for a computer (assuming everything is connected properly), pushing the B key on the keyboard will result in the letter b appearing on the monitor. With differing keystrokes resulting in a different letter appearing across the screen, the relation connecting the keystrokes of the letters on a keyboard to the letter appearing on the computer monitor is a function since every input has a unique output. For this discussion, you are tasked with finding a relation from the real world that avoids numbers and is a function. Remember that in order for a function to exist, you will need a well-defined set of inputs (our example used the set of all letters on the keyboard) and each input has a unique output (our example used the letter that appeared on the computer monitor as the unique output).  

1. Create a function that exists in the real world while avoiding the use of numbers.
2. Justify the reason why your example is a function (you may want to focus on the set of all inputs along with how the outputs are determined for each input).
3. Reply to at least two classmate providing a thorough analysis of their example and determine if it is a function.

Answer 1