### Home > INT2 > Chapter 9 > Lesson 9.3.1 > Problem 9-82

9-82.

Consider the quadratic function .

Without drawing a graph, determine the coordinates of the vertex and state whether the vertex represents the maximum or minimum value of the function.

The vertex is the point where

The vertex is a maximum when the parabola opens downward and a minimum when the parabola opens upwards.

Sketch the graph and verify your answer to part (a).