Which two equations form a system with no * solutions (same slope but different y intercept)?

1. y = 5х -4
2. у =-2x + 3
3. y =37 + 1
4. 2y = 6x + 2
5. у - 5х = 2
6. у - 4x + 1 = 0
Option 1
• Option 2
Option 3
Option 4
Option 5
Option 6

1 answer

To find two equations that form a system with no solutions (i.e., they are parallel lines), we need to identify two equations with the same slope but different y-intercepts.

Let's analyze the options:

  1. \(y = 5x - 4\): Slope = 5, y-intercept = -4
  2. \(y = -2x + 3\): Slope = -2, y-intercept = 3
  3. \(y = 37 + 1\): This simplifies to \(y = 38\) (a horizontal line). Slope = 0, y-intercept = 38
  4. \(2y = 6x + 2\): Dividing everything by 2 gives \(y = 3x + 1\). Slope = 3, y-intercept = 1
  5. \(y - 5x = 2\): Rearranging gives \(y = 5x + 2\). Slope = 5, y-intercept = 2
  6. \(y - 4x + 1 = 0\): Rearranging gives \(y = 4x - 1\). Slope = 4, y-intercept = -1

Now, let's summarize the slopes and y-intercepts:

  • Option 1: Slope = 5, y-intercept = -4
  • Option 2: Slope = -2, y-intercept = 3
  • Option 3: Slope = 0, y-intercept = 38
  • Option 4: Slope = 3, y-intercept = 1
  • Option 5: Slope = 5, y-intercept = 2
  • Option 6: Slope = 4, y-intercept = -1

The equations with the same slope (parallel lines) are:

  • Option 1: \(y = 5x - 4\) and Option 5: \(y = 5x + 2\)

Since both have a slope of 5 but different y-intercepts (-4 and 2), they are parallel and will have no solutions.

Therefore, the answer is: Option 1 and Option 5 form a system with no solutions.