Question

The line R passes through the points (2, -2) (8, 5) and the line S passes through the points (7, -8) (0, -2) . Is the Line R is perpendicular to Line S​

Answer 1

Answer:

R=(8,5)-(2,-2)=(6,7)

s=(0,-2)-(7,-8)=(-7,6)

R.s=(6,7).(-7,6)

=-42+42

=0

R Is perpendicular to line S