Answer
$P=1.62A-23.87$
.
Work Step by Step
Using desmos.com, we enter a table (columns labeled as A and P), enter the data points, and in a new cell, enter$\quad P\sim mA+b$
The calculator returns $\left\{\begin{array}{l}
m=1.61646\\
b=-23.8692\\
r=0.9435
\end{array}\right.$
where $r$ is the regression cofficient.
$r$ is close to 1, indicating a good fit for the data.
Rounding coefficients, the regression line is given by
$P=1.62A-23.87$