Questions: Determine the vertex of the graph of the following parabola.
f(x)=3(x-3)^2+4
Give your answer as an ordered pair (h, k).
Transcript text: Determine the vertex of the graph of the following parabola.
\[
f(x)=3(x-3)^{2}+4
\]
Give your answer as an ordered pair $(h, k)$.
Solution
Solution Steps
Step 1: Determine the x-coordinate of the vertex
To find the x-coordinate of the vertex, we use the formula \(h = -\frac{b}{2a}\).
Substituting the given values, we get \(h = -\frac{-18}{2(3)} = 3\).
Step 2: Determine the y-coordinate of the vertex
To find the y-coordinate of the vertex, we substitute \(h\) back into the original equation \(f(x) = ax^2 + bx + c\).
Thus, \(k = a(h)^2 + b(h) + c = 3(3)^2 - 18(3) + 31 = 4\).
Final Answer:
The vertex of the parabola described by the equation \(f(x) = 3x^2 - 18x + 31\) is at the point \((3, 4)\).