Question 451182
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Hi,
Annual profit in thousands of dollars is given by the function, 
P(x) = 12x - 100, 
where x is the number of items sold in thousands, x &#8805; 10.
1.describe the meaning of the number 12 in the formula
   As x increases by one, P(x) increases by 12
 (that is: for every 1000 items sold, profit increases by $12,000)