Heather and Joel bought a house for $157,200 and know that the house appreciates every year. They keep track of their house value for 5 years and model their data with the exponential equation y = 150000(1.004)12t How much will their house be worth in 8 years?
Solution:
Equation of the appreciation of the value of house is given by:-
![y=150000(1.004)^(12t)](https://img.qammunity.org/2019/formulas/mathematics/college/aojychb2343d05ql3suuybortjs4i3lz8b.png)
We need to find the worth of the house after 8 years
So, that means time, t=8
Let us plug t=8 in the equation
![y=150000(1.004)^(12t)](https://img.qammunity.org/2019/formulas/mathematics/college/aojychb2343d05ql3suuybortjs4i3lz8b.png)
So, we get,
![y=150000(1.004)^(12*(8))](https://img.qammunity.org/2019/formulas/mathematics/college/a0vjzk6p9610f1u6obgjo7gbdnicsnxxwc.png)
![y=150000(1.004)^(96)](https://img.qammunity.org/2019/formulas/mathematics/college/hfj1ya65mqcog7rrhnrkiztt42rlzaasg8.png)
![y=150000(1.467021)](https://img.qammunity.org/2019/formulas/mathematics/college/3ujeujmlrsbtizg5m1ban0xrx6ytkzwfw6.png)
y=150000*1.467021
y=220053.20
In 8 years the value appreciates to $220053.20, that s, worth of house after 8 years=$22005320