Algebra 1

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

Chapter 5 - Linear Functions - 5-5 Standard Form - Practice and Problem-Solving Exercises - Page 325: 44


If both A and B were zero, then we would have the situation that zero equals some number, which is almost always false (unless that number is zero).

Work Step by Step

Let A and B = 0: $Ax + By = C$ $0*x + 0 * y = C$ $0 = C$ (which is false if C $\ne 0$)
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