# Thread: Finding real life examples for linear functions

1. ## Finding real life examples for linear functions

To say the least I have no idea why I'm in college algebra.I suck really bad!!!! I have a tutor that doesn't help. I need some help on getting examples for a real life example of a linear function.
Help!

2. I think the examples is so many that we do not even think of them. In 3d-graphics for example, you use a lot of vectors. In phisycs simulations, vectors for all sorts of things is essential. Your body weight is for example a linear function of your initial weight, how much food you eat and how much you drink, how much you burn and how much you sweat.

3. Originally Posted by HeatherLuberts
To say the least I have no idea why I'm in college algebra.I suck really bad!!!! I have a tutor that doesn't help. I need some help on getting examples for a real life example of a linear function.
Help!
Here are two simple Physics ones:

The speed of an object in free-fall (not including air resistance) is a linear function of time.

The distance traveled by an object moving at a constant speed is a linear function of time.

-Dan