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 Test - Page 127: 25

Answer

Slope-intercept Form: $y=\dfrac{1}{4}x+11$ Standard Form: $x-4y=-44$

Work Step by Step

Using $y=mx+b$ or the Slope-Intercept Form of linear equations, where $m$ is the slope and $b$ is the $y$-intercept, the equation of the line, given $ m=\dfrac{1}{4} \text{ and } b=11 ,$ is \begin{align*} y=\dfrac{1}{4}x+11 \end{align*} In the form $Ax+By=C$ or the Standard Form of Linear Equations, the equation above is equivalent to \begin{align*} 4(y)&=\left( \dfrac{1}{4}x+11 \right)4 \\\\ 4y&=x+44 \\ -x+4y&=44 \\ -1(-x+4y)&=(44)(-1) \\ x-4y&=-44 \end{align*}
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