Big Ideas Math - Algebra 1, A Common Core Curriculum

Published by Big Ideas Learning LLC
ISBN 10: 978-1-60840-838-2
ISBN 13: 978-1-60840-838-2

Chapter 5 - Solving Systems of Linear Equations - Chapter Review - Page 282: 2

Answer

The solution is $(1,-1)$. The graph is shown below.

Work Step by Step

The given system of linear equation is $y=-4x+3$ ...... (1) $4x-2y=6$ ...... (2) Graph each equation. The intersection point is $(1,-1)$. Check the intersection point. Equation 1: $\Rightarrow y=-4x+3$ $\Rightarrow -1=-4(1)+3$ $\Rightarrow -1=-4+3$ $\Rightarrow -1=-1$ True. Equation 2: $\Rightarrow 4x-2y=6$ $\Rightarrow 4(1)-2(-1)=6$ $\Rightarrow 4+2=6$ $\Rightarrow 6=6$ True. Hence, the solution is $(1,-1)$.
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