THINK A QUADRATIC FUNCTION. GRAPH AND IDENTIFY THE VERTEX, DOMAIN, RANGE, AND THE OPENING OF THE GRAPH. STATE WHETHER THE VERTEX IS MINIMUM OR MAXIMUM POINT.
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. In either case, the vertex is a turning point on the graph.
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Answer:
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. In either case, the vertex is a turning point on the graph.
I'm not sure but I hope it's help