Question

Which graph represents the function f(x)=x4+8x3+6x2−40x+25?

Answer 1

Answer:

Graphic A. (Upper left graphic)

Step-by-step explanation:

The roots of the fourth-order polynomial are, that is the values of x which make polynomial equal to zero:

$x = 1$ and $x = -5$

By comparing the results with each graphic, it is evident that option A corresponds with the function. (Upper left graphic)

Answer 2

Answer:

In the picture below.