Question

One solution to a quadratic function, h, is given.

Answer 1

Answer:

B. The other solution to function $h$ is $-4-i\,7$.

Step-by-step explanation:

From Algebra, we remember that quadratic functions of the form $a\cdot x^{2}+b\cdot x + c$ has solutions of the form:

$x = \frac{-b\pm \sqrt{b^{2}-4\cdot a\cdot c}}{2\cdot a}$, where both are complex if and only if $\sqrt{b^{2}-4\cdot a \cdot c}< 0$.

Hence, if one solution of the quadratic function is $-4+i\,7$, then the other solution is $-4-i\,7$. The correct answer is B.