If the line 3x - 4y + 12 = 0 is parallel to which of the following lines?

Practice Questions

Q1
If the line 3x - 4y + 12 = 0 is parallel to which of the following lines?
  1. 6x - 8y + 24 = 0
  2. 3x + 4y - 12 = 0
  3. x + 2y - 5 = 0
  4. 2x - 3y + 6 = 0

Questions & Step-by-Step Solutions

If the line 3x - 4y + 12 = 0 is parallel to which of the following lines?
  • Step 1: Identify the equation of the given line, which is 3x - 4y + 12 = 0.
  • Step 2: Rearrange the equation into slope-intercept form (y = mx + b) to find the slope.
  • Step 3: Start by isolating y: 3x - 4y + 12 = 0 becomes -4y = -3x - 12.
  • Step 4: Divide every term by -4 to solve for y: y = (3/4)x + 3.
  • Step 5: Identify the slope (m) from the equation, which is 3/4.
  • Step 6: Understand that parallel lines have the same slope.
  • Step 7: Check the other line options to find one with the same slope of 3/4.
  • Step 8: Rearrange the equation of the other line (6x - 8y + 24 = 0) into slope-intercept form.
  • Step 9: Isolate y: 6x - 8y + 24 = 0 becomes -8y = -6x - 24.
  • Step 10: Divide every term by -8 to solve for y: y = (3/4)x + 3.
  • Step 11: Confirm that the slope of this line is also 3/4, meaning it is parallel to the original line.
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