Can someone help me please faster

Idon’t understand this.. will someone ? will mark brainliest along with 20 points.

The coordinates of a, b, and c in the diagram are a(p,4), b(6,1), and c(9,q). which equation correctly relates p and q? hint: since is perpendicular to , the slope of × the slope of = -1. a. p - q = 7 b. q - p = 7 c. -q - p = 7 d. p + q = 7

Aline has a slope of negative 1/4 the past two points -5/4 and 1 what is the equation of the line