College Algebra 7th Edition

Published by Brooks Cole
ISBN 10: 1305115546
ISBN 13: 978-1-30511-554-5

Chapter 1, Equations and Graphs - Chapter 1 Review - Concept Check - Page 168: 6


See below:

Work Step by Step

a) The slope of the line is the gradient and shows change as opposed to 2 different variables. $m= \frac{\triangle y}{\triangle x}= \frac{-2-4}{1+1}=-3$ b) We simply put it in slope-intercept form. $3y=-6x+12$ $y=-2x+4$ Slope is -2, y-int is 4 C) Use point slope: $y-2=3(x-1)$ c)
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