Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter 2 - Section 2.8 - Modeling Using Variation - Exercise Set - Page 425: 41


Use the 4 step procedure to solve for variation parameters.

Work Step by Step

Step 1. Write an equation using the given statement. Suppose $y=kx$ Step 2. Substitute the given value of $x$ and $y$ in step 1 and find the value of $k$. Suppose $x=2$ and $y=4$ then, $\begin{align} & 4=2k \\ & k=2 \\ \end{align}$ Step 3. Substitute $k=2$ in step 1. $y=2x$ Step 4. Use the equation from step 3 to find the problem question according to given condition.
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