Question

line p passes through points (2,13) and (9,8). line q is perpendicular to p what is the slope of line q?

Answer 1

to find the slope of P, use the formula (y2-y1)/(x2-x1)

(8-13)/(9-2) gives you -5/7

a perpendicular line has the opposite reciprocal slope so it is positive 7/5 or 1 2/5