Question

The profit P (in dollars) made by a cinema from selling x bags of popcorn can...

The profit P (in dollars) made by a cinema from selling x bags of popcorn can be modeled by

P = 2.38x −

x2
28,000

^ this is a fraction

− 3,300,    0 ≤ x ≤ 50,000.

(a) Find the intervals on which P is increasing and decreasing. (Enter your answer using interval notation.)

increasing    
decreasing    
Math   Advanced-Math   
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