If 5+6i is a root of the polynomial function f(x),which of the following must also be a root of f(x)

b. would be the answer : )

step-by-step explanation:

step 1: add -16x to both sides.

16x−4y+−16x=64+−16x  

−4y=−16x+64

step 2: divide both sides by -4.

−4y /-4 = -16x + 64/-4

answer:   y=4x−16

hope i'm right

if you are looking for the unit rate then the answer would be 9 because unit rate is distance divided by time.

step-by-step explanation: