### Home > CCA > Chapter 11 > Lesson 11.2.1 > Problem 11-39

11-39.

Given the quadratic function

Without drawing a graph, tell the coordinates of the vertex and tell if the vertex represents the maximum or minimum value of the function.

The graphing form of a quadratic is

where the vertex is at the point.

If the vertex is the highest point on the graph, then it is a maximum.

If it is the lowest point on the graph, then it is a minimum.Use your graphing shortcuts to draw a graph and verify your answer to part (a).