Questions: Use the graph of the quadratic function f(x) = a(x-h)^2 + k to find the vertex, axis of symmetry, and the minimum or maximum value of the function.
Transcript text: Use the graph of the quadratic function $f(x)=a(x-h)^{2}+k$ to find the vertex, axis of symmetry, and the minimum or maximum value of the function.
Solution
Solution Steps
Step 1: Vertex
The vertex of the quadratic function \( f(x) = a(x-h)^2 + k \) is given by the coordinates \( (h, k) \). For the values provided, we have:
\[
\text{Vertex} = (2, -3)
\]
Step 2: Axis of Symmetry
The axis of symmetry is the vertical line that passes through the vertex, which can be expressed as:
\[
x = h
\]
Substituting the value of \( h \):
\[
\text{Axis of Symmetry} = x = 2
\]
Step 3: Minimum or Maximum Value
The function's minimum or maximum value occurs at the vertex's y-coordinate \( k \). Since the coefficient \( a = 1 \) is positive, the function has a minimum value. Thus:
\[
\text{Minimum Value} = k = -3
\]