Consider the following system of linear equations in variables x, y, and z: + 2y 3z 1 kz 2 ky + -1 where k is a constant. Which of the following statements is true? (Read them carefully!) The system has infinitely many solutions for exactly one value of k. The system never has infinitely many solutions (regardless of the value of k). There are exactly two values of k for which the system does not have infinitely many solutions. The system has infinitely many solutions for exactly two values of k. The system has infinitely many solutions for any value of k.

Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter2: Systems Of Linear Equations
Section2.2: Direct Methods For Solving Linear Systems
Problem 2BEXP
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Consider the following system of linear equations in variables x, y, and z:
+
2y
3z
1
kz
2
ky +
-1
where k is a constant.
Which of the following statements is true? (Read them carefully!)
The system has infinitely many solutions for exactly one value of k.
The system never has infinitely many solutions (regardless of the value of k).
There are exactly two values of k for which the system does not have infinitely
many solutions.
The system has infinitely many solutions for exactly two values of k.
The system has infinitely many solutions for any value of k.
Transcribed Image Text:Consider the following system of linear equations in variables x, y, and z: + 2y 3z 1 kz 2 ky + -1 where k is a constant. Which of the following statements is true? (Read them carefully!) The system has infinitely many solutions for exactly one value of k. The system never has infinitely many solutions (regardless of the value of k). There are exactly two values of k for which the system does not have infinitely many solutions. The system has infinitely many solutions for exactly two values of k. The system has infinitely many solutions for any value of k.
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