Math, HELP!! UGENT!
posted by Max .
Find the value of k so that the line containing the points (−8,8) and (2,k) is perpendicular to the line containing the points (14,−8) and (9,−6).

slope of given line: 2/5
slope of ┴ line: 5/2
(k8)/(2+8) = 5/2
solve for k