The conjugate which is 3 - √7 is also a root of f(x).
<h3>What is the root of a polynomial function?</h3>
The root of a polynomial function f(x) is the value of x for which f(x) = 0.
Now if a polynomial function has a root x = a + √b then the conjugate of x which is x' = a - √b is also a root of the function, f(x).
<h3>What must also be a root of f(x)?</h3>
Given that the polynomial function, f(x), with rational coefficients has roots
3 + √7, then by the above, the conjugate which is 3 - √7 is also a root of f(x).
So, 3 - √7 is also a root of f(x).
Learn more about root of a polynomial function here:
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The answer to the questions
45/65 equals .6923, so D is the right answer
F(x+6) +2 up and right in a graph is positive
