Elementary Geometry for College Students (5th Edition)

Published by Brooks Cole
ISBN 10: 1439047901
ISBN 13: 978-1-43904-790-3

Chapter 10 - Section 10.2 - Graphs of Linear Equations and Slope - Exercises - Page 465: 12b

Answer

y = $\frac{-20}{3}$

Work Step by Step

C(-1,-4) D(3,y) and m =$\frac{-2}{3}$ x1=-1,y1=-4,x2=3,y2=y Using slope formula m = $\frac{y2-y1}{x2-x1}$ $\frac{-2}{3}$= $\frac{y-(-4)}{3-(-1)}$ = $\frac{y+4}{4}$ $\frac{-2}{3}$ * 4 = y+4 y=$\frac{-8}{3}$ -4 = $\frac{-20}{3}$
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