Ch7 project: Mapping Your Future

In this project, I somewhat mapped out my future. I started by planning which college I go to and how to pay for the college. I researched online to find financial aids and scholarships. Luckily, I was able to find many financial aids that would help me deduct the costs. However, when I applied into graduate school, I had problems with money, so I had to borrow student loans. The after that, I became a history professor, but I had to pay my loans ASAP and so I saved hard to pay them before the interests increase. Luckily, through the whole course I was able to find transportation (bus) and my parents allowed me to live under their roof for free until I finished paying off my student loans.

Ch 6 project: Curve Fitting with Polynomial Models

First, I went on Yahoo Finance and look for the opening price of my index and stock for January 5 of the years: 1994, 1995, 1996, 1997, 2000, 2001, 2003, and 2004. Next, I insert the data into my calculator by using the STAT function. Then I try to use the different regression options: quadratic regression, cubic regression, and quartic regression. From there, I choose the correlation coefficient that is closest to 1. Then I use the use the polynomial function to predict the prices for given years: 2002, 2005, 2008, 2010, and 2011. I go on Yahoo Finance again to look for the actual opening prices. Many of the outcomes did not match my predictions, but that takes me onto the next step. Then, I have to look on the internet to research major news events that would explain why my predictions are wrong.

3D Graph

For this project, I’m supposed to build a 3D project to represent a linear equation. My original equation is x+y+z=3. And I have the corner that contains –x, -y, and z. In order to graph my equation, I have to find where the point would hit each axis. Now my new equation would be –x-y+z=3. Then to solve for each axis, I just plug in 0 for the two other variables. So I’m left with (-3,0,0), (0,-3,0), and (0,0,3). Lastly, I just have to connect the points with a yarn.

Ch 3.4 Linear Programming

The title of my project is “Cookie Monster’s Cookies”. My problem is: Cookie Monster is planning to buy cookies from the Cookie House on Sesame Street. However, Cookie Monster’s cookie box only has 300 square inches. The Chocolate Chip Cookies are 0.6 square inches and the Sugar Cookies are 1 inch. Both the cookies cost $1.25. Cookie Monster wants to buy both types of cookies. Unfortunately, he only has $500 to spend. First, I write out the constraints of the problem, which is: C is greater than or equal to 0, S is greater than or equal to 0, 0.6C+ 1S is less than or equal to 300, and 1.25C+ 1.25S is less than or equal to 500. Then I graph each of the constraints individually. Next, I combine all the graphs onto a single graph, and I have my feasible region. Lastly, I find the vertices based on the graph, and it is: (0,0), (0,400), (300,0), and (150,250).

Ch 2 project-Mercedes McLaren

For my chapter 2 project, I chose the Mercedes McLaren. First, I find mileages for speeds {55,60,65,60,75,80}, which is {16,15.5,14.7,13.3,12.3,11.5}. Then I made a graph of all the numbers according to the data and it comes out with a strong negative correlation. Then I chose (15.5,60) and (16,55) and use the slope formula to find the find the slope, which is -0.1. Next, I use the point slope formula to find the equation of two points, which turns out to be y=-0.1x+21.5. Then I use the graphing calculator and graph the data and find the line of best fit with its equation and correlation coefficient. The correlation coefficient is -0.992104599 and the equation is y=-0.1914285714x+26.8047619. If the speed of the car is 55 miles per hour, then the mileage would be 16.27619047 miles per gallon. If the mileage is 28 miles per gallon, then the speed would be approximately 25 miles per hour.

Marina Geometry

My name is Marina and this is my second year at Oakland Senior High School, my sophomore year. I went to Lincoln Elementary school, but I went to Bella Vista before I transferred there. I went to a Middle School that is located just up the hill from Oakland High school, named Edna Brewer Middle School. So far, my life is quite boring because I repeat the same routines everyday, but I'm enjoying every part of it. I'm the type of person that detest changes, I like to keep everything the same way, which means little improvement. Even though this is my sophomore year, I'm not sure where my life is heading. I change my dream jobs every year, and if you want me to list them out, it'll add up to almost 14. Right now, I want to major in history, but haven't decide what specifically. I don't volunteer or work during the school year. During the summer, I volunteered at my Middle School library. This year, I'm looking forward to more volunteering opportunities and be more active in extra curricular activities. I spend most of my time on the computer, playing video games. I also enjoy reading, only if I find a good book. Lastly, thank you for reading my blog, and yea, I'm always open for new friends.