Find the coordinates of the vertex for the parabola defined by the given quadratic function.
-$$f ( x ) = x ^ { 2 } - 9$$
A) $( 0 , - 9 )$
B) $( 1,0 )$
C) $( 0,9 )$
D) $( 9,0 )$

Question

Quizplus · Accepted Answer

The vertex form of a parabola is $y = a(x - h)^2 + k$, where $(h, k)$ is the vertex. For the given function $f(x) = x^2 - 9$, it's already in a form close to the vertex form with $a = 1$, $h = 0$, and $k = -9$, indicating the vertex is at $(0, -9)$.

Find the Coordinates of the Vertex for the Parabola Defined f(x)=x2−9f ( x ) = x ^ { 2 } - 9f(x)=x2−9

Find the Coordinates of the Vertex for the Parabola Defined $f ( x ) = x ^ { 2 } - 9$