Answer
Non-linear
Work Step by Step
A linear equation does not contain the product of variables and in this equation, there is a multiplication of variables $x$ and $y$ after the constant $4$, so the equation is not linear.
Elementary Linear Algebra 7th Edition
by Larson, Ron
Published by
Cengage Learning
ISBN 10:
1-13311-087-8
ISBN 13:
978-1-13311-087-3
Chapter 1 - Systems of Linear Equations - 1.1 Introduction to Systems of Linear Equations - 1.1 Exercises - Page 10: 2
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