Which of the following statements must be true about the polynomial function f(x)? lf 1 13 is a root of f(x), then-1- 13 is also a root of f(x)13i is also a root of f(x)lf 1 13i is a root of f(x), then 1if 13 is a root of f(x), then -13 is also a root of f(x)o lf -13 t i is a root of f(x), then 13 i is also a root of f(x).

' 1+13 i ' is a solution or root of f(x) then it's complex conjugate ' 1-13 i ' will also be a solution.

Step-by-step explanation:

" we know that a complex root always appear in pair so for any polynomial function f(x) if 'a+i b' is a solution or root then its complex conjugate 'a-i b' is also a solution for this polynomial function f(x) ".

Here we are given that ' 1+13 i ' is a solution or root of f(x) then it's complex conjugate ' 1-13 i ' will also be a solution.

answer: the dogs need to shift their focus to human scent.

its because the dogs being trained are for search and rescue thus they need to be able to track humans and their specific scent

set each factor equal to 0

4x-3 = 0

2x-1 = 0

solve for x.

4x-3=0

4x=3

x= 3/4

solve for x. 

2x-1= 0

2x= 1

x= 1/2

eventually after a few more steps, your answer should be 1/2 is less than or equal to x and 3/4 is greater than or equal to x