Intermediate Algebra: Connecting Concepts through Application

Published by Brooks Cole
ISBN 10: 0-53449-636-9
ISBN 13: 978-0-53449-636-4

Chapter 1 - Linear Functions - 1.3 Fundamentals of Graphing and Slope - 1.3 Exercises: 60

Answer

incorrect Slope: $7$ $y$-intercept: $(0,-4)$

Work Step by Step

Rearrange the equation into slope-intercept form. $7x-y=4$ $-y=-7x+4$ $y=7x-4$ The slope is the coefficient of $x$, and the constant term that is added is the $y$ value in the $y$-intercept of $(0,y)$. Slope: $7$ $y$-intercept: $(0,-4)$ The student was incorrect. The student did not divide both sides by $-1$ when $y$ was negative.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.