Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)

Published by Pearson
ISBN 10: 0-32193-104-1
ISBN 13: 978-0-32193-104-7

Chapter 10 - Systems of Equations and Inequalities - Chapter Review - Review Exercises - Page 814: 5

Answer

The system of equations is inconsistent and has no solutions.

Work Step by Step

We need to solve the given system of equations: $x−3y+4=0~~~(1)\\ \dfrac{x}{2}-\dfrac{3y}{2}+\dfrac{4}{3}=0 ~~~(2)$ Multiply the second equation by $2$. $x-3y+\dfrac{8}{3} =0~~~ (3)$ Re-write equation (1) as: $x=3y-4$ Substitute $x=3y-4$ into equation (3). $(3y-4)-3y+\dfrac{8}{3} =0 \\ \dfrac{4}{3}=2$ Since $\dfrac{4}{3}$ never equals $2$, the system of equations is inconsistent and has no solutions.
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