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: 23

Answer

Slope-intercept Form: $y=3x-7$ Standard Form: $3x-y=7$

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=3 \text{ and } b=-7 ,$ is \begin{align*} y=3x-7 \end{align*} In the form $Ax+By=C$ or the Standard Form of Linear Equations, the equation above is equivalent to \begin{align*} -3x+y&=-7 \\ -1(-3x+y)&=(-7)(-1) \\ 3x-y&=7 \end{align*}
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