Slope and Linear Equations - Why Bother?

I really never thought that I would be able to use the stuff we have learned in Algebra! But, I have found out that people might actually use this in the real world!!

I learned that a linear equation is more than just some x and y values. I now understand that the slope related to a rate of change, like how much money we earned per car washed. I learned that you can use a linear model to make predictions, as long as you know what your variable stand for in the equation. I always knew that variables stand for an unknown value, but this project really helped me to understand what those unknown values actually mean in the real-world.

You could use a linear model to track the amount of money I deposit into my savings account over time.