Your company uses the quadratic model y $y = - 4.5 x ^ { 2 } + 150 x$ 150x to represent the average number of new customers who will be signed on (x) weeks after the release of your new service. How many new customers can you
Expect to gain in week 8?
A) 456 customers
B) 1164 customers
C) 312 customers
D) 912 customers

Question

Quizplus · Accepted Answer

To find the number of new customers in week 8, substitute $x = 8$ into the quadratic model: $y = -4.5(8)^2 + 150(8)$. This simplifies to $y = -4.5(64) + 1200$, which equals $y = -288 + 1200$, resulting in $y = 912$ customers.

Your Company Uses the Quadratic Model Y y=−4.5x2+150xy = - 4.5 x ^ { 2 } + 150 xy=−4.5x2+150x

Your Company Uses the Quadratic Model Y $y = - 4.5 x ^ { 2 } + 150 x$