Algebra 1

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

Chapter 10 - Radical Expressions and Equations - 10-4 Solving Radical Equations - Standardized Test Prep - Page 625: 56


$y=.5x-1.5$ (most useful if we needed the y-intercept or a slope) $x+2y=3$ (most useful if no slope is needed or if two points aren't given) $y+1 = .5(x-1)$ (most helpful when given a graph or two points on a line)

Work Step by Step

$m=.5$, $(1, -1)$ $y=mx+b$ $-1 = .5*1+b$ $-1 = .5+b$ $-1-.5 = .5+b-.5$ $-1.5 = b$ $y=.5x-1.5$ $y=.5x-1.5$ $2*(y=.5x-1.5)$ $2y=x-3$ $2y+3-2y=x-3+2y$ $3 = x+2y$
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