Applications

Site: Clare-Gladwin RESD
Course: Michigan Algebra II KHauck
Book: Applications
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Date: Sunday, 19 May 2024, 10:05 PM

Description

Applications

Applications

There are many applications of polynomials. One of the most important is volume of a rectangular prism. Recall that the formula to determine volume of a rectangular prism is: V = lwh, where l = length, w = width and h = height.

Example Find the function that models the volume of a rectangular cereal box with length (15 - x), width (12 - x) and height (x). Determine the maximum volume of the prism.

Step 1. Use substitution to write a function in factored form.

app_ex1

Step 2. To determine maximum volume, find the local maxima of the graph.

app_ex2

Step 3. Determine the maximum volume for the box.

Since the local maxima is contained within the domain of this function: app_ex2-2

the maximum volume will be 354.47 cubic units.



Video Lesson

To learn more about applications of polynomials select the following link:

Polynomial Applications

Hemoglobin Problem

Hemoglobin Worksheet

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Sales of Gym Shoes Problem

Gym Shoes Worksheet

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Answer Key

Hemoglobin & Shoes Answer Key

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Sources

 Sources used in this book:

Embracing Mathematics, Assessment & Technology in High Schools; a Michigan Mathematics & Science Partnership Grant Project

Holt, Rinehart & Winston, "Polynomial Functions." http://my.hrw.com/math06_07/nsmedia/homework_help/alg2/alg2_ch06_05_homeworkhelp.html (accessed 810/2010).