Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)

Published by Pearson
ISBN 10: 0-32193-104-1
ISBN 13: 978-0-32193-104-7

Chapter F - Foundations: A Prelude to Functions - Section F.3 Lines - F.3 Assess Your Understanding - Page 31: 107


$\text{(b) }y=2x$

Work Step by Step

The graph contains the points $(0,0)$ and $(4,8)$. Both points satisfy the equation $y=2x$. $0=2(0)$ $8=2(4)$ Thus, the equation of the line is $y=2x$.
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