Intermediate Algebra (6th Edition)

Published by Pearson
ISBN 10: 0321785045
ISBN 13: 978-0-32178-504-6

Chapter 3 - Section 3.3 - Graphing Linear Functions - Vocabulary, Readiness & Video Check - Page 149: 9

Answer

We know that A will be 0 for a horizontal line, while B will be 0 for a vertical line.

Work Step by Step

When A is equal to 0, we are left with an equation of the form y= n, where n is some number. We know that this is the equation of a horizontal line. Similarly, when b equals 0, we are left with x=n, the equation for a vertical line.
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