Line represent the graph of 3x + 4y = -14. Line passes through the point (-5,7), and is perpendicular to line . If line represents the graph of y=mx +b
, then find m+b.
+37146 3x + 4y = -14. re-arrange as y = -3/4 x - 14/4 slope , m = -3/4 perpindicular slope = - 1/m = 4/3
new line becomes
y = 4/3 x + b sub in the given point to find 'b'
7 = 4/3 (-5) + b so b = 13 2/3
y = 4/3 x + 13 2/3 you can finish....I hope !
