A function is an equation where when you put in something, you get a different or unique result out of the equation. Functions are used for ciphers, computer coding, and many points in finance (interest, tax, etc.). Because they are used so much in the real word, it is important for us to know how to use functions.

Pick a number	82	X
Add 17	99	X+17
Multiply by 12	1,188	12X+204
Subtract 24	1,164	12X+180
Divide by 2	582	6X+90
Add 162	744	6X+252
Divide by 6	124	X+42
Subtract your original #	42	42