x – -4x + cy = 3c Consider the system *- 2y = Determine the values of c for which the system has (a) (b) (c) no solution infinitely many solutions exactly one solution.

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ChapterP: Prerequisites: Fundamental Concepts Of Algebra
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Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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College Linear Algebra:

 

### System of Linear Equations: Solutions Based on Parameter \( c \)

Consider the system of linear equations:

\[ x - 2y = \frac{1}{2} \]
\[ -4x + cy = 3c \]

Determine the values of \( c \) for which the system has:
  a) No solution
  b) Infinitely many solutions
  c) Exactly one solution

#### Explanation:

This problem involves analyzing a system of two linear equations to determine the values of parameter \( c \) that will yield different types of solutions. Here’s what each part requires:

1. **No Solution**:
   - For the system to have no solution, the lines represented by the equations must be parallel but not coincident. This happens when the coefficients of \( x \) and \( y \) are proportional, but the constants on the right side are not proportional.

2. **Infinitely Many Solutions**:
   - For the system to have infinitely many solutions, the equations must represent the same line. This occurs when both the coefficients of \( x \) and \( y \), and the constants are proportional.

3. **Exactly One Solution**:
   - For the system to have exactly one solution, the lines must intersect at a single point. This happens when the lines are neither parallel nor coincident.

By solving and analyzing the equations accordingly, one can determine the critical values of \( c \) for each case. Let's break down this analysis step-by-step:

1. **Transform both equations to standard form for comparison**.
2. **Compare coefficients to identify relationships between them**.
3. **Substitute back to confirm values of \( c \)**.

These steps ensure a thorough understanding of how different values of \( c \) affect the solution set of the system.
Transcribed Image Text:### System of Linear Equations: Solutions Based on Parameter \( c \) Consider the system of linear equations: \[ x - 2y = \frac{1}{2} \] \[ -4x + cy = 3c \] Determine the values of \( c \) for which the system has: a) No solution b) Infinitely many solutions c) Exactly one solution #### Explanation: This problem involves analyzing a system of two linear equations to determine the values of parameter \( c \) that will yield different types of solutions. Here’s what each part requires: 1. **No Solution**: - For the system to have no solution, the lines represented by the equations must be parallel but not coincident. This happens when the coefficients of \( x \) and \( y \) are proportional, but the constants on the right side are not proportional. 2. **Infinitely Many Solutions**: - For the system to have infinitely many solutions, the equations must represent the same line. This occurs when both the coefficients of \( x \) and \( y \), and the constants are proportional. 3. **Exactly One Solution**: - For the system to have exactly one solution, the lines must intersect at a single point. This happens when the lines are neither parallel nor coincident. By solving and analyzing the equations accordingly, one can determine the critical values of \( c \) for each case. Let's break down this analysis step-by-step: 1. **Transform both equations to standard form for comparison**. 2. **Compare coefficients to identify relationships between them**. 3. **Substitute back to confirm values of \( c \)**. These steps ensure a thorough understanding of how different values of \( c \) affect the solution set of the system.
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