<PRE><B>Question 37602</B>
(x passengers/day)*(1.75/passenger) - $1200 expenses/day =  Profit/day
1.75x - 1200 = P
{{{ graph( 800, 300, -100, 1200, -2000, 2000, 1.75*x - 1200) }}}
Just from looking at the graph, you can see that when x = 0 (no passengers)
P = -1200 per day, the fixed cost. When P = 0 (no profit), the graph shows
about 700 passengers.
1.75x - 1200 = 0
1.75x = 1200
x = 686 approximately
If there are 920 passengers,
1.75 * 920 -1200 = P
1610 -1200 = P
410 = P
$410 daily profit
That looks right from the graph </PRE>