Algebra 2 Common Core

Published by Prentice Hall
ISBN 10: 0133186024
ISBN 13: 978-0-13318-602-4

Chapter 3 - Linear Systems - Cumulative Standards Review - Multiple Choice - Page 188: 1

Answer

$\text{D}$

Work Step by Step

We can solve this system of equations using the substitution method. We substitute the expression for $y$ into the first equation: $-4(2x - 3) = 12 - 8x$ Distribute to eliminate the parentheses, paying attention to the signs: $-8x + 12 = 12 - 8x$ Add $8x$ to both sides of the equation: $12 = 12$ This means that this system of equations has an infinite number of solutions because the lines are actually the same line. This corresponds to option $D$.
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