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: 74

Answer

y = 2x - 2

Work Step by Step

Looking at the graph, we can use the two marked points (0,-2) and (2,2) to find the slope, which comes out to 2. We can then find the y-intercept just by looking at the graph, and seeing that it is at (0, -2) Then, we put it in to standard form using the y = mx + b formula, to get the answer: y = 2x - 2
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