Line 1 represents the graph of 3x + 4y = -14. Line 2 passes through the point (5,7), and is perpendicular to line 1. If line 2 represents the graph of y=mx +b, then find m+b.
4y = -3x -14 y = -3/4 x -14/4 slope , m, = -3/4 perpindicular = - 1/m = 4/3
point slope form of line 2
(y-7) = 4/3 (x-5) expand R side and re-arrange into y = mx + b form to calc your answer....