alleryStart learning →A parabola whose equation has a negative squared term has a vertex that is its:
ARightmost point
BHighest point
CLowest point
DLeftmost point
Answer & Solution
Correct answer: B. Highest point
1. Orientation decides whether the vertex is a peak or a trough.
2. When the squared term is negative, the parabola opens downward.
3. A downward-opening curve rises to a turning point and then falls.
4. The axis of symmetry passes through that turning point.
5. So the vertex is the highest point of the curve.
_Source: OpenStax Elementary Algebra 2e (CC BY 4.0), Ch 10 'Quadratic Equations', sections 10.1-10.5_
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