Algebra and Trigonometry 10th Edition

Published by Cengage Learning
ISBN 10: 9781337271172
ISBN 13: 978-1-33727-117-2

Chapter 1 - 1.1 - Graphs of Equations - 1.1 Exercises - Page 79: 45

Answer

There is no symmetry about the x-axis, about the y-axis nor the origin. See graph The intercepts: $(6,0)$, $(0,6)$

Work Step by Step

$$y=|x-6|$$ Testing for symmetry about the x-axis: $$-y=|x-6|$$ $$y=-|x-6|$$ Since the resulting equation is not the same as the original equation, there is no symmetry about the x-axis. Testing for symmetry about the y-axis: $$y=|-x-6|$$ Since the resulting equation is not the same as the original equation, there is no symmetry about the y-axis. Testing for symmetry about the origin: $$-y=|-x-6|$$ $$y=-|-x-6|$$ Since the resulting equation is not the same as the original equation, there is no symmetry about the origin. Finding the vertex with $y=|x-h|+k$, the vertex is $(6,0)$. At $x=0$: $$y=|0-6|=6$$ At $x=9$: $$y=|9-6|=3$$ Thus, two more points on the curve are $(0,6)$ and $(9,3)$. Using the points, the graph is as shown below. The intercepts are for x-intercept is $(6,0)$ and for y-intercept is $(0,6)$.
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