Regina has finished writing her first book, Successful Steps to College Success. She wants to determine the price at which she should sell her book in order to maximize her revenue. This situation is expressed by the equation y=−0.5x2+24x , where x represents the price and y represents the revenue. In terms of the context, what price should Regina sell the book to earn maximum revenue?(1 point)Responses$288$288$12$12$24$24$48

Question

Regina has finished writing her first book, Successful Steps to College Success. She wants to determine the price at which she should sell her book in order to maximize her revenue. This situation is expressed by the equation  y=−0.5x2+24x , where x represents the price and y represents the revenue. In terms of the context, what price should Regina sell the book to earn maximum revenue?(1 point)Responses$288$288$12$12$24$24$48

GPT-4o mini · Answer

To determine the price at which Regina should sell her book to maximize revenue, we need to analyze the given revenue function:

\[ y = -0.5x^2 + 24x \]

This is a quadratic equation in the form of $ ax^2 + bx + c $ where:

$ a = -0.5 $
$ b = 24 $

The maximum revenue occurs at the vertex of the parabola described by this quadratic equation. The x-coordinate of the vertex can be found using the formula:

\[ x = -\frac{b}{2a} \]

Substituting the values of $ a $ and $ b $:

\[ x = -\frac{24}{2 \times -0.5} = -\frac{24}{-1} = 24 \]

Thus, Regina should sell the book for $24 to achieve maximum revenue.

Therefore, the correct response is:

$24