Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 5 - Linear Functions - 5-1 Rate of Change and Slope - Practice and Problem-Solving Exercises: 31

Answer

12

Work Step by Step

We are given two points: (3, 36) and (7, 84). (Note, cost is the dependent variable as how much money it costs depends on the number of people.Thus, we know that people must be the independent variable). In order to find the slope, we use the following equation: $ \frac{y_{2}-y_{1}}{x_{2}-x_{1}}$. Thus, we obtain: $\frac{84-36}{7-3}=\frac{48}{4}=12$
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.