Question

What do we call the maximum height on an upside-down parabola?

Answer 1

Answer:

One important feature of the graph is that it has an extreme point, called the vertex. If the parabola opens up, the vertex represents the lowest point on the graph, or the minimum value of the quadratic function. If the parabola opens down, the vertex represents the highest point on the graph, or the maximum value.

Answer 2

Answer:

if the parabola open down the vertex represent the lowest point on the graph,or the minimum value of the quadratic function