Mathematics Diagnostic Assessment 32
The current number of coupons being mailed out by a company each week in one region of the country can be represented by
the function R(x) = 3x2 + 21x, where xis the number of cities in the region. The number of coupons in a new mailing sent only
to preferred customers can be represented by the function Px) - 9x.
Which function best describes Cx), the number of coupons that are shipped out in any given week?
OA CX) = 3x2 + 12x
OB. CX) = 12x2 + 21%
OC.
Cx) = 3x2 + 30%
OD. CX) = -6x2 + 21%
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