a graph of a quadratic function is shown on the grid which coordinate best represents the vertex of the graphA) (0,9)B) (9,0)C) (0,3)D) (3,0)

SOLUTION:
Case: Identifying the vertex of the graph
Given: A graph with a turn point
Required: To identify the coordinate of the vertex (or turning point)
Method:
The turning point of the graph is where the graph changes direction (or behaviour)
Final answer:
The vertex of the graph is at (3,0) Option (D)