The lumber used to frame walls of houses is frequently sold in-multiples of 2 feet. If the
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The lumber used to frame walls of houses is frequently sold in-multiples of 2 feet. If the length of a board is not exactly a multiple of 2 feet, there is often no charge for the additional length. For example, if a board measures at least 8 feet but less than 10 feet, then the consumer is charged for only 8 feet.
(a) Suppose that the cost of lumber is $0.80 for every 2 feet. Find a formula for a function f that computes the cost of a board x feet long for 6 ≤ x ≤ 5 18.
(b) Graph f.
(c) Determine the costs of boards with lengths of 8.5 feet and 15.2 feet.
Related Book For
College Algebra
ISBN: 978-0134697024
12th edition
Authors: Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
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