Answer:
slope of perpendicular line = - 2
Explanation:
calculate the slope of YZ using the slope formula
m =
with (x₁, y₁ ) = Y (- 7, - 4 ) and (x₂, y₂ ) = Z (5, 2 )
=
=
=
=
given a line with slope m then the slope of a line perpendicular to it is
= -
= -
= - 2