1.   Determine whether the graphs of the pair of equations
2x + 3y = 6 and 4x + 6y = 5
are parallel, coinciding, or neither.
    A. all are correct B. neither
    C. parallel D. coinciding
    Hint

  2.   Determine whether the graphs of the pair of equations
3x - 2y = 7 and 3x + 2y = 7
are parallel, coinciding, or neither.
    A. coinciding B. neither
    C. all are correct D. parallel
    Hint

  3.   Write the standard form of the equation of the line that passes through the point (-1, 3) and is parallel to the graph of 2x - 7y + 1 = 0.
    A. 2x - 7y - 23 = 0 B. 2x + 7y - 23 = 0
    C. 2x - 7y + 23 = 0 D. 2x + 7y + 23 = 0
    Hint

  4.   Determine the equation of the perpendicular bisector of the line segment with endpoints S(2, 6) and T(10, -4).
    A. 4x - 5y - 19 = 0 B. 4x - 5y + 19 = 0
    C. 5x + 4y + 19 = 0 D. 5x - 4y - 19 = 0
    Hint

  5.   Write the equation of the line perpendicular to 5y + 3x - 10 = 0 and that passes through the point (3,1).
    A. 3x + 5y - 50 = 0 B. 5x + 3y - 12 = 0
    C. 5x - 3y - 4 = 0 D. 5x - 3y - 12 = 0
    Hint