Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 8 - Section 8.1 - Review of Equations of Lines and Writing Parallel and Perpendicular Lines - Exercise Set - Page 573: 35



Work Step by Step

The original equation (x-4y=4) can be rewritten in terms of y as (y = x/4 - 1) The slope of the perpendicular line must be the reciprocal and opposite sign as the original slope(1/4), so the slope must be -4. So far, we have y = -4x + c to find C, plug in the x and y values given (-1, 5), to find C as 1 therefore: y = -4x + 1
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