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 9 - Solving Quadratic Equations - Maintaining Mathematical Proficiency - Page 477: 8

Answer

$(4,4)$

Work Step by Step

The given system of linear equation is $y=\frac{3}{2}x-2$ ...... (1) $y=-\frac{1}{4}x+5$ ...... (2) Graph each equation. The intersection point is $(4,4)$. Check the intersection point. Equation 1: $\Rightarrow y=\frac{3}{2}x-2$ $\Rightarrow 4=\frac{3}{2}(4)-2$ $\Rightarrow 4=6-2$ $\Rightarrow 4=4$ True. Equation 2: $\Rightarrow y=-\frac{1}{4}x+5$ $\Rightarrow 4=-\frac{1}{4}(4)+5$ $\Rightarrow 4=-1+5$ $\Rightarrow 4=4$ True. The solution is $(4,4)$.
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