Precalculus (6th Edition)

Published by Pearson
ISBN 10: 013421742X
ISBN 13: 978-0-13421-742-0

Chapter 2 - Graphs and Functions - 2.5 Equations of Lines and Linear Models - 2.5 Exercises - Page 243: 34

Answer

(a) to D. (b) to B. (c) to A. (d) to C.

Work Step by Step

(a) $y=3x+2$ has positive slope and positive y-intercept, thus (a) to D. (b) $y=-3x+2$ has negative slope and positive y-intercept, thus (b) to B. (c) $y=3x-2$ has positive slope and negative y-intercept, thus (c) to A. (d) $y=-3x-2$ has negative slope and negative y-intercept, thus (d) to C.
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