Chapter 8.3, Problem 44E

To determine

To find: The quadratic function $f\left(-\frac{b}{2a}\right)$

Answer to Problem 44E

The function of $f\left(-\frac{b}{2a}\right)$ is the y -coordinate of the vertex.

Explanation of Solution

Given information:

The quadratic function f as given below,

  $f\left(-\frac{b}{2a}\right)$

Formula used:

The graph represents the x −axis and y −axis.

Calculation:

Since $x=-\frac{b}{2a}$ represents the x -coordinate of the vertex, then

  $f\left(-\frac{b}{2a}\right)$ is the y-coordinate of the vertex.

Conclusion:

The function of $f\left(-\frac{b}{2a}\right)$ is the y-coordinate of the vertex.