College Algebra (10th Edition)

Published by Pearson
ISBN 10: 0321979478
ISBN 13: 978-0-32197-947-6

Chapter 2 - Section 2.3 - Lines - 2.3 Assess Your Understanding - Page 179: 90


slope: $-1$, y-intercept: $0$.

Work Step by Step

If possible, write in the form $\quad y=mx+b$ $x+y=0$ $y= -x\qquad(+0)$ slope: $-1$, y-intercept: $0$. Graphing when we know m and b: Write m as a fraction, positive denominator, $m=\displaystyle \frac{\pm u}{v}.$ Start from $(0,b)$. Move v units to the right, and u units up or down, depending on the sign. In this way you arrive at a second point, which is enough to define a line. $m=\displaystyle \frac{-1}{1}$ $(0,0)\rightarrow(0+1,0-1)=(1,-1)$
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.