Physics

Today in my Algebra II class we had a little experiment outside with physics. We were asked to throw a bean bag underhand from one yard, while timing how long it took to hit the ground. We followed by doing this with a wiffle ball the same way. We used the physics equation h=-16t+Vt+h to find the velocity. My initial velocity was 34.9 ft/sec for the wiffle ball.  For the bean bag my initial velocity was 35.9 ft/sec. My general equation for the wiffle ball was h=-16(2.09) +v(2.09) + 3 and the time at its highest was .85 seconds while the height was 20.3 feet. The time the bean bag hit its highest point was at .85 seconds at 22.9 feet. I found these times and maximum heights by plugging the initial velocities into the equation.
I used a graphing calculator so I was able to map where the max height was at what time by using the x and y coordinates.

Functions

A function is a factor that goes into a system and comes out differently based on a pattern. Functions are used in the real world through technology. Encrypting is done through computers for security reasons, it could also be used for military reasons. It is important to know how a function works because you may need to know how to decode something, and it is only going to become more complex.

Guess my number!

Today in Algebra ll I learned a little Algebra trick. Move through these steps, and I bet I can guess your number!

1. Pick a number
2. Double it
3. Subtract 2
3. Divide it by 2
4. Add 2
5. Subtract your original number

I bet your number is 1!