Use the quadradic formula to solve the equation.

Anonymous
timer Asked: May 18th, 2015

Question description

During the period 1998-2002, the number y (in millions) of juvenile books shipped to bookstores can be modeled by the equation y=-15x^2+64x+360 where x is the number of years since 1998. In what year were there 400 million juvenile books shipped to bookstores?

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