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.

step-by-step explanation:

for exempl this   system of equations   y = x - 3

                                                                y = 2x - 5

look   the line : y = x -3     ( red)

                            the line : y = 2x -5 ( bleus)

step-by-step explanation:

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