A line is perpendicular to another line if m2 = -1/(m1), where m1 is the slope of the original line and m2 is the slope of the perpendicular line. Which of the following equations represents the line that passes through the point (1, –1) and is perpendicular to the line below?

Question

Vocaloid · Answer

I can't find the full question but

calculate the slope of the line in the graph

find the negative reciprocal to find the slope of the new line

then plug in the new slope into the point slope equation along w/ (1,-1), re-arrange as needed