Question

Use a graph to predict the value of jewelry in 7 years.

Answer 1

Given that the initial cost price of the jewelry is $2,200.

The rate at which it decreases each year is 12%.

Thus, the exponential decay function is;

`\begin{gathered} y(t)=2200(1-0.12)^t \\ \\ \text{ Where }t\text{ is the time in years.} \end{gathered}`

The graph of the function is;

From the graph;

CORRECT OPTION:

`\approx899.09`