Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)

Published by Pearson
ISBN 10: 0-32184-874-8
ISBN 13: 978-0-32184-874-1

Chapter 3 - Introduction to Graphing - 3.2 Graphing Linear Equations - 3.2 Exercise Set - Page 170: 11


not a solution

Work Step by Step

An ordered pair is a solution of an equation if its coordinates satisfy the equation itself. Substitute the m and n values of the given point into the given equation to obtain: $4m-5n=7 \\4(3)-5(-1)=7 \\12-(-5)=7 \\12+5 = 7 \\17\ne7$ Since the coordinates of the given point do not satisfy the given equation, then the given point is NOT a solution of the given equation.
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