Question

Tell whether the lines through the given points are parallel, perpendicular, or neither.

Line 1: (-9,3) (-5,7)

Line 2: (-11, 6) (-7, 2)

The slope of line 1 is
.

The slope of line 2 is
.

Answer 1

Line 1: slope is 1

Line 2: slope is -1

Lines are perpendicular