This question is really throwing me through a loop, here:
Write an equation of the line containing a given point and perpendicular to the given line. Express your answer in y=mx+b
(3,6) 7x+y=6
two lines are perpendicular if their slopes are opposite reciprocals.
determine the slope of the line 7x+y = 6 by changing to y = mx+b form.
find the opposite reciprocal of the slope of 7x+y = 6, then use that slope and the given point to write the required linear equation.
if you require further info, go to the link for a lesson ...
Pearson Prentice Hall Mathematics Video