Intermediate Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-894-7
ISBN 13: 978-0-13417-894-3

Chapter 3 - Section 3.1 - Systems of Linear Equations in Two Variables - Exercise Set - Page 192: 95


See the solution as given below.

Work Step by Step

Equation for slope of a straight line is $y=mx+b$ Here $m=$ slope a) Refer the given data. we have $b=38$ $27.3=m(20)+38$ or, $m=-0.54$ Thus, $y=-0.54x+38$ ...(1) b) Refer the given data. we have $b=40$ $24.2=m(20)+40$ or, $m=-0.79$ Thus, $y=-0.79x+40$ ...(2) c) After solving the equations (1) and (2), we get $x=8, y=33.68$ Thus, (8,33.68)=(1993,33.68 %)
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.