SOLUTION: The standard form of a line is 4x+5y=51. Another line passes through points (5,8) and (9,3). Prove whether the second line is parallel or perpendicular to the first line.

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: The standard form of a line is 4x+5y=51. Another line passes through points (5,8) and (9,3). Prove whether the second line is parallel or perpendicular to the first line.      Log On