Asked in Math and ArithmeticAlgebraNumbers
How do you use negative numbers in real life?
September 25, 2011 11:36PM
I've never had to use (-3x/-4y)+(-5n X -3p) on a daily basis. In real life, if you think about it, tax is a negative number.
Every debit entry in your checkbook is a negative number. It must be subtracted from a higher (hopefully) number. If you write checks for more than what is in the bank, your account will have a negative number balance, meaning that you owe the bank money.
Also, anyone working with digital electronics will always be working with negative numbers (voltages, etc.)
- physics and measuring how objects move
- calculus, which explains how piece-wise functions (even ones that use negative numbers) makes many of the computerized designs and cartoons