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 - Page 50: 3


a. m = $\frac{5}{2}$ b. Increasing c. y-int = (0,-7.5) d. x-int = (3,0)

Work Step by Step

a. The line passes through the points (3,0) and (0,-7.5). The slope formula is: $m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}$ $m=\frac{-7.5 - 3}{0-3}$ $m = \frac{5}{2}$ b. The line is increasing as it starts in the negative quadrant and increases to the positive quadrant. c. The y-intercept is the point at which the line cuts the y-axis. Looking at the graph, the y-intercept is (0,-7.5). d. The x-intercept is the point at which the line cuts the x-axis. Looking at the graph, the x-intercept is (3,0).
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.