Aroom has a cathedral ceiling. if the walls in the room are 10 feet high and the ceiling is 18 feet high in the center of the room that is 35 feet wide, find the slope of the left side of the ceiling. express your answer as a decimal rounded to two places.

Aline is perpendicular to another line 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 (-2,1) and is perpendicular to the line below?