Intermediate Algebra (12th Edition)

Published by Pearson
ISBN 10: 0321969359
ISBN 13: 978-0-32196-935-4

Chapter 9 - Chapter R-9 - Cumulative Review Exercises - Page 641: 10

Answer

Graph of $5x+2y=10$

Work Step by Step

To find points on the given equation, $ 5x+2y=10 $, substitute values of $x$ and solve for the corresponding value of $y$. That is, \begin{array}{l|r}\require{cancel} \text{If }x=0: & \text{If }x=2: \\\\ 5(0)+2y=10 & 5(2)+2y=10 \\ 0+2y=10 & 10+2y=10 \\ 2y=10 & 2y=10-10 \\ \dfrac{\cancel2y}{\cancel2}=\dfrac{10}{2} & 2y=0 \\ y=5 & \dfrac{\cancel2y}{\cancel2}=\dfrac{0}{2} \\ & y=0 .\end{array} Thus, the points $ (0,5) $ and $ (2,0) $ are points on the line determined by the equation $ 5x+2y=10 $.
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