Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 5 - Linear Functions - 5-4 Point-Slope Form - Mixed Review - Page 318: 38


Slope: $1$ $y$-intercept: $4$

Work Step by Step

The slope-intercept form of a linear equation of a non vertical line is $y=mx+b$, where $m$ is the slope and $b$ is the $y$-intercept. We use this fact to find the slope and $y$-intercept of $y=x+4$ We rewrite using a coefficient for $x$: $y=1x+4$ Since $1$ takes the place of $m$, it is the slope. Since $4$ takes the place of $b$, it is the $y$-intercept.
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