Questions: Consider the following quadratic function.
f(x)=-3(x+1)^2+5
Identify the vertex and the axis of symmetry.
vertex
(x, y)=
axis of symmetry
Determine whether the vertex yields a relative and absolute maximum or minimum.
relative and absolute maximum
relative and absolute minimum
Transcript text: Consider the following quadratic function.
\[
f(x)=-3(x+1)^{2}+5
\]
Identify the vertex and the axis of symmetry.
vertex
\[
(x, y)=(
\]
$\square$ )
axis of symmetry $\square$
Determine whether the vertex yields a relative and absolute maximum or minimum.
relative and absolute maximum
relative and absolute minimum
Additional Materials
Reading
Solution
Solution Steps
To find the vertex of the quadratic function in vertex form \( f(x) = a(x-h)^2 + k \), identify \( h \) and \( k \) from the equation. The vertex is \((h, k)\). The axis of symmetry is the vertical line \( x = h \). Since the coefficient \( a \) is negative, the parabola opens downwards, indicating that the vertex is a point of relative and absolute maximum.
Step 1: Identify the Vertex
The vertex of the quadratic function \( f(x) = -3(x+1)^{2} + 5 \) is given by the coordinates \( (h, k) \). From the function, we have:
\[
h = -1, \quad k = 5
\]
Thus, the vertex is:
\[
\text{Vertex} = (-1, 5)
\]
Step 2: Determine the Axis of Symmetry
The axis of symmetry for a quadratic function in vertex form is given by the line \( x = h \). Therefore, the axis of symmetry is:
\[
\text{Axis of Symmetry} = x = -1
\]
Step 3: Analyze the Vertex
Since the coefficient \( a = -3 \) is negative, the parabola opens downwards. This indicates that the vertex represents both a relative and absolute maximum point of the function.