Question

look at this graph: what are the coordinates of the vertex?

Explanation:

Step1: Identify vertex on graph

The vertex of a parabola is the lowest (or highest) point. On the given graph, we visually locate this point.

Step2: Read coordinates

We read the x - coordinate and y - coordinate of the vertex. The x - coordinate is the value on the x - axis and the y - coordinate is the value on the y - axis at the vertex. The vertex is at the point where the parabola changes direction. Looking at the graph, the x - coordinate of the vertex is - 2 and the y - coordinate is - 9.

Answer:

(-2, - 9)