<PRE><B>Question 57469</B>
(a) What is her profit if she sells 2000 units?
P(x) = 2.25x - 7000
P(x) = 2.25(2000) - 7000 = -2500
She loses $2,500 (tough break)
(b) What is her profit if she sells 5000 units?
P(x) = 2.25x - 7000
P(x) = 2.25(5000) - 7000 = 4250
She makes a profit of $4,250
(c) What is the break-even point for sales?
P(x) = 2.25x - 7000
0 = 2.25x - 7000
7000 = 2.25x
7000/2.25 = 3111 1/9</PRE>