Question

The slope of a given line is 1/3 . What is the slope of a line that is perpendicular to the given line? Type a numerical answer in the space provided. Do not type spaces in your answer. If necessary, use the / key to represent a fraction bar.

Answer 1

If slope of the line is 1/3,  then slope of the perpendicular line should be negative reciprocal, and so it is equal -3.
Answer: -3.