Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter 1 - Section 1.1 - Graphs and Graphing Utilities - Exercise Set: 43

Answer

(a) x-intercept/s = -2 and 1 (b) y-intercept/s = 2

Work Step by Step

RECALL: (1) The x-intercept is the x-coordinate of the point where the graph crosses/touches the x-axis. (2) The y-intercept is the y-coordinate of the point where the graph crosses/touches the y-axis. Notice that the graph crosses: (a) the x-axis at $(-2, 0)$ and $(1, 0)$; and (b) the y-axis at $(0, 2)$. This means that the graph has: (a) x-intercept/s = -2 and 1 (b) y-intercept/s = 2
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