Answer
$P(0)=-1000$
In 2005 the airline had a loss of 1000 million dollars.
$P(1)=650$
In 2006 the airline had an income of 650 million dollars.
$P(3.5)=-2000$
Iin the midpoint of 2008 the airline had a loss of 2000 million dollars.
Work Step by Step
If we look at the graph, we have to find the points that are on the graph and that are with the x-coordinates of $0$, $1$ and $3.5$
By looking at the graph, we can find that $P(0)=-1000$, meaning that in 2005 the airline had a loss of 1000 million dollars.
By looking at the graph, we can find that $P(1)=650$, meaning that in 2006 (1 year after 2005) the airline had an income of 650 million dollars.
By looking at the graph, we can find that $P(3.5)=-2000$, meaning that in the midpoint of 2008 (3.5 years after 2005) the airline had a loss of 2000 million dollars.