Algebra 2 Common Core

Published by Prentice Hall
ISBN 10: 0133186024
ISBN 13: 978-0-13318-602-4

Chapter 2 - Functions, Equations, and Graphs - Chapter Review - Page 124: 22

Answer

$ y=2x-\dfrac{3}{2} $ (See graph below)

Work Step by Step

Using the properties of equality, the Slope-Intercept Form ($y=mx+b$) of the given equation, $ 4x-2y=3 ,$ is \begin{align*}\require{cancel} -2y&=-4x+3 \\\\ \dfrac{-2y}{-2}&=\dfrac{-4x+3}{-2} \\\\ y&=\dfrac{-4}{-2}x+\dfrac{3}{-2} \\\\ y&=2x-\dfrac{3}{2} .\end{align*} To graph the given equation, use the intercepts. If $y=0,$ then \begin{align*} 4x-2(0)&=3 \\ 4x&=3 \\\\ \dfrac{4x}{4}&=\dfrac{3}{4} \\\\ x&=\dfrac{3}{4} .\end{align*} The $x$-intercept is $ \left(\dfrac{3}{4},0\right) $. If $x=0,$ then \begin{align*} 4(0)-2y&=3 \\ -2y&=3 \\\\ \dfrac{-2y}{-2}&=\dfrac{3}{-2} \\\\ y&=-\dfrac{3}{2} .\end{align*} The $y$-intercept is $ \left( 0,-\dfrac{3}{2}\right) $. Connecting the intercepts with a line, the graph of the given equation is shown above.
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