Question

The quadratic regression equation that models these data is y = - 0.34x ^ 2 + 4.43x + 3.46 Using the quadratic regression equation what was the predicted profit in year 8? A. $ 17.14 million B. $ 17 million C. $ 16.8 million D. $16 million

Answer 1

A. $ 17.14 million.

Explanation:

Profit:

The profit, in millions of dollars, on year x, is given by:

`y(x) = -0.34x^2 + 4.43x + 3.46`

Year 8

This is y(8). So

`y(8) = -0.34(8^2) + 4.43(8) + 3.46 = 17.14`

$17.14 million, option A.