Question

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

Explanation:

Step1: Locate the vertex on graph

The vertex is the highest or lowest point of the curve. In this graph, the curve has a highest - point.

Step2: Read the x - coordinate

Count the number of grid - squares along the x - axis from the origin to the vertex. The x - coordinate is 0.

Step3: Read the y - coordinate

Count the number of grid - squares along the y - axis from the origin to the vertex. The y - coordinate is 5.

Answer:

(0, 5)