$\"\"$

The exponential model is $\"\"$ .

Observe the graph of the function :T the points $\"\"$ are lie on the graph of $\"\"$ .

So, the points $\"\"$ are lie on the graph of $\"\"$ .

Substitute the point $\"\"$ in $\"\"$ .

$\"\"$

Substitute the point $\"\"$ in $\"\"$ .

$\"\"$

Substitute $\"\"$ in above equation. \ \

$\"\"$

$\"\"$ .

Thus, the exponential model is $\"\"$ .

$\"\"$

The exponential model is $\"\"$ .