Find the axis of symmetry of the parabola defined by the given quadratic function.
-$$f ( x ) = x ^ { 2 } + 7$$
A) $x = 0$
B) $x = 7$
C) $x = - 7$
D) $y = 7$ y

Question

Quizplus · Accepted Answer

The axis of symmetry of a parabola given by the function $f(x) = ax^2 + bx + c$ is always the vertical line $x = \frac{-b}{2a}$. In this case, $a=1$ and $b=0$, so the axis of symmetry is $x=\frac{0}{2(1)} = 0$. Therefore, the answer is choice A.

Find the Axis of Symmetry of the Parabola Defined by the Given