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 78: 9

Answer

The point (2,0) lies on the graph of $y=x^2-3x+2$, but the point (-2,8) does not.

Work Step by Step

$y=x^2-3x+2$ (a) Point: (2,0): $0=2^2-3(2)+2$ $0=4-6+2$ $0=0$ Correct. (b) Point: (-2,8): $8=(-2)^2-3(-2)+2$ $8=4+6+2$ $8=12$ Incorrect.
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