Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 4 - An Introduction to Functions - 4-5 Writing a Function Rule - Practice and Problem-Solving Exercises - Page 265: 21


A= w$\times$(3w-2) The area of the rectangle when its width is 2 ft is 8 $ft^{2}$

Work Step by Step

The formula for the Area of a rectangle is A= w$\times$l and in this scenario, the length is 2 minus 3 times the width this l= 3w-2, therefore substituting 3w-2 for l we get A= w$\times$(3w-2) For the question, What is the area of the rectangle when its width is 2 ft? We substitute 2 for w. w=2 A= w$\times$(3w-2) A= (2)$\times$(3(2)-2) A= 8 $ft^{2}$
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