Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)

Published by Pearson
ISBN 10: 0-32184-874-8
ISBN 13: 978-0-32184-874-1

Chapter 3 - Introduction to Graphing - Test: Chapter 3: 20

Answer

x-intercept: $(6, 0)$ y-intercept $(0, -30)$

Work Step by Step

Find the x-intercept by setting $y=0$ then solving for $x$ to obtain: $5x-y=30 \\5x-0=30 \\5x=30 \\\frac{5x}{5}=\frac{30}{5} \\x=6$ Thus, the x-intercept is $(6, 0)$. Find the y-intercept by setting $x=0$ then solving for $y$ to obtain: $5x-y=30 \\5(0)-y=30 \\-y=30 \\-1(-y)=-1(30) \\y=-30$ Thus, the y-intercept is $(0, -30)$.
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