Question

Line m passes through points (8,9) and (4,4). Line n is perpendicular to m. What is the

slope of line n?

Answer 1

Explanation:

here x1=8 , y1=9 , x2=4 , y2=4

using formula

slipe(m)=y2-y1/x2-x1

=4-9/4-8

=-5/-4

=5/4