3.1+Earning+Interest

Student Initials: PR Big Idea: Many real word situations can be modeled and predicted using mathematics. Essential Question: How can I model a non-linear relationship?**
 * Today's Date: September 6, 2008

Notes: How to find Interest = I I = 8% of 100$ I = 0.08 x 100$ I = 8$
 * __3.1 Earning Interest__**

Problem- Charlie's account has been earning 8% interest at the end of every year since Chantal was born. Charlie has not deposited or withdrawn any money since he opened the account. How much money is in the account on Chantal's fourteeth birthday? To find out how much there is on her 14th birthday, i will make a table.
 * Age ||  0  ||  1  ||  2  ||  3  ||  4  ||  5  ||  6  ||  7  ||  8  ||  9  ||  10  ||  11  ||  12  ||  13  ||  14  ||
 * Money ||  100  ||  108  ||  116.64  ||  123.49  ||  129.96  ||  136.11  ||  141.98  ||  147.61  ||  153.02  ||  158.24  ||  163.29  ||  168.18  ||  172.93  ||  177.55  ||  182.05  ||

So, on her 14th birthday, Chantal would have 182.05$ from the account Charlie opened.

__Follow-Up__ 1. Look at problem (table already made) 2. 3.Using my graph, i can extend it to 18 years old and i would she that she would get 204.8$. 4. It depends wether she would want 182$ right now, or in four years. I would pick the one for 18 years old. 5. This data is different because the data is closer to linear then the other ones. The other data had a curve in it, and this one didn't.
 * 14 || 15 || 16 || 17 || 18 ||
 * 182.05 || 186.44 || 196.74 || 200.80 || 204.8 ||