Answer
The slope is $1.38$ (million tons of production) per (1 million acre increase).
(For each million acres increase in area, the production increases by about $1.38$ million tons.)
Work Step by Step
The unit of slope in
$y=mx+b$
is (unit of y) per (unit of x)
Slope is calculated as (change in y)/(change in x).
Here, $P=1.38A-24.04$; the slope is $1.38$ (million tons of production) per (1 million acre increase).
(For each million acres, the production increases by about $1.38$ million tons.)
