Precalculus (6th Edition)

Published by Pearson
ISBN 10: 013421742X
ISBN 13: 978-0-13421-742-0

Chapter 2 - Graphs and Functions - 2.4 Linear Functions - 2.4 Exercises - Page 228: 35


Refer to the graph below.

Work Step by Step

RECALL: The equation $y=mx+b$ has a slope of $m$ and a y-intercept of $(0, b)$. Thus, the equation $y=3x+4$ has a y-intercept of $(0, 4)$. To find the -intercept, set $y=0$ then solve for $x$ to obtain: $y=3x+4 \\0=3x+4 \\0-4=3x \\-4=3x \\\frac{-4}{3}=\frac{3x}{3} \\\frac{-4}{3}=x$ The x-intercept is $(-\frac{4}{3}, 0)$. Use a graphing calculator to plot the intercepts and connect a them using a line. (Refer to the graph in the answer part above.)
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.