Question

HELP! 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. During what year were there 400 million juvenile books shipped to bookstores?

Answer 1

1999

Explanation:

y=-15x^2+64x+360

y=-15(1)^2+64(1)+360

y=409

(y is in millions)

I hope this helps!