Which of the following systems of linear equations has no solution?(1 point)

Responses

{4x−y=−174x+y=3

{4x−y=174x+y=3

{4x+y=174x−y=3

{4x−y=174x−y=3

1 answer

To determine which system of linear equations has no solution, we look for systems that represent parallel lines. Parallel lines have the same slope but different y-intercepts.

Let's analyze each system:

  1. System:

    • \(4x - y = -17\)

    • \(4x + y = 3\)

    • Convert to slope-intercept form \(y = mx + b\):

      • First equation: \(y = 4x + 17\) (slope \(m = 4\))
      • Second equation: \(y = -4x + 3\) (slope \(m = -4\))
    • Conclusion: Different slopes → has a solution (intersecting lines).

  2. System:

    • \(4x - y = 17\)

    • \(4x + y = 3\)

    • Convert to slope-intercept form:

      • First equation: \(y = 4x - 17\) (slope \(m = 4\))
      • Second equation: \(y = -4x + 3\) (slope \(m = -4\))
    • Conclusion: Different slopes → has a solution (intersecting lines).

  3. System:

    • \(4x + y = 17\)

    • \(4x - y = 3\)

    • Convert to slope-intercept form:

      • First equation: \(y = -4x + 17\) (slope \(m = -4\))
      • Second equation: \(y = 4x - 3\) (slope \(m = 4\))
    • Conclusion: Different slopes → has a solution (intersecting lines).

  4. System:

    • \(4x - y = 17\)

    • \(4x - y = 3\)

    • The first equation can be rewritten as \(y = 4x - 17\) and the second equation as \(y = 4x - 3\). Both equations have the same slope (\(m = 4\)) but different y-intercepts.

    • Conclusion: The lines are parallel and never intersect → this system has no solution.

From the analysis, the system of linear equations that has no solution is:

\[ {4x - y = 17, , 4x - y = 3} \]

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