You study the depression of the price of a smartphone over the course of 10 years. you are given a table that looks like this below
Years | Price ($) |
0 | 750 |
4 | 170 |
You first need to find the linear equation of this. You are given only a simple calculator. No Desmos.
How would you do that?
Next, you are given a rough graph of the exponential depression of the price over time:
(This is a rough graph I drew. It isn't entirely correct but should give a good idea.)
Using this graph and the table, you need to find what the equation of the exponential is. But also you now know that at 2 years, the phone was worth $375. Updated table that goes with the graph:
Years | Price ($) |
0 | 750 |
2 | 375 |
4 | 170 |
How do you go about finding the exponential equation of the graph using the table?
Thanks.