Question

1. the highest or lowest point on the graph of a quadratic function, depending on whether it opens upwards or downwards, is called the ____.2. if the parabola of a quadratic function opens upwards, the vertex represents the __ value of the range.3. if the parabola of a quadratic function opens downwards, the vertex represents the ____ value of the range.

Explanation:

1. The key term for the extreme point of a quadratic function's graph is defined as the vertex.
2. An upward-opening parabola extends infinitely upwards, so its vertex is the lowest value of the range.
3. A downward-opening parabola extends infinitely downwards, so its vertex is the highest value of the range.

Answer:

1. vertex
2. minimum
3. maximum