Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 1 - Foundations for Algebra - Cumulative Test Prep - Multiple Choice - Page 75: 12



Work Step by Step

Inspecting the table and using mental math show us that the equation in selection F, $y=50x$, is true for each entry. Substitute each given value for x to verify. $100\overset?=50(2)$ $100=100\checkmark$ $200\overset?=50(4)$ $200=200\checkmark$ $250\overset?=50(5)$ $250=250\checkmark$ $400\overset?=50(8)$ $400=400\checkmark$ Substituting one of the given values for x does not result in the corresponding value for y for any of the other equations. To prove this, substitute the value of 2 for x. In the table, if x=2, y=100. G) $100\overset?=100(2)$ $\ \ \ \ 100\ne200$ H) $100\overset?=2+50$ $\ \ \ \ 100\ne52$ I) $100\overset?=2+100$ $\ \ \ 100\ne102$
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