Wednesday, September 22, 2010

Regression Equations

Years:
1
2
3
4
5

Facebook Users: (in millions)
100
200
300
400
500

Equation: y = 100x + 0

r = 1

Data shows that the users have been going up the same rate over the past five years, it is a positive correlation. It it important to be able to analyze  regression because if you couldn't you wouldn't be able to understand a lot of information. If you couldn't understand how to analyze it you also wouldn't be able  to make any data of your own. We use it in everyday life. In real life situations usually the slope is something like how much more money you will get per year and such.

Wednesday, September 8, 2010

Defining a Function

A function is when you  depend on one variable to get another one. Functions are used in the real world in situations such as passwords. It's important to understand how functions work because it is a very big part of math today.

Tuesday, August 31, 2010

Cara's Algebra II Blog

I'm in algebra two and we're making our own number game that turns out to be an algebraic equation. The answer you get should always turn out the same no matter which one you start with.


My Game:

1. Pick a number

2. Add 4

3. Multiply by 2

4. Subtract 6

5. Divide by 2

6. Subtract Original






Solution: Should always end with the number 1.