Find the vertex of the parabola
y=(x+8)2−9
To solve for the vertex of the parabola, we need to recognize that the equation y=(x+8)2−9 is already in vertex form, which is y=(x−h)2+k.
Let's break down the given equation:
- Rewrite the given equation: y=(x+8)2−9.
This matches the vertex form y=(x−h)2+k.
- Identify values: Here, h=−8 and k=−9.
Thus, the vertex is located at the point (−8,−9).
Comparing with the multiple-choice options provided:
- Choice 1: (−8,9) - Incorrect k.
- Choice 2: (8,−9) - Incorrect h.
- Choice 3: (8,9) - Incorrect both h and k.
- Choice 4: (−8,−9) - Correct.
Therefore, the vertex of the parabola is (−8,−9).