Morgan drove from los angeles, at an elevation of 330 feet, to death valley, at an elevation of -282 feet. what is the difference in elevation between los angeles and death valley?

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?