Find the slope of the line perpendicular to the line y = (1/3)x - 7	Choose the correct option
A) -1  B) -2  C) -3  D) -4  E) -5
Two lines are perpendicular if the product of their slopes is equal to -1. The slope of the given line is equal to 1 / 3. If m is the slope of the line perpendicular to the given line, then   m × (1/3) = -1   Solve for m   m = - 3   correct answer -3) -3
<result>C</result>
Find the slope of the line perpendicular to the line y = (1/3)x - 7