Question

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

Explanation:

Step1: Identify the vertex on the graph

The vertex is the highest point of the parabola.

Step2: Determine the x - coordinate

Count the units on the x - axis. The x - coordinate of the vertex is $-3$.

Step3: Determine the y - coordinate

Count the units on the y - axis. The y - coordinate of the vertex is $9$.

Answer:

$(-3,9)$