College Algebra CLEP Prep Practice Exam 2025 - Free College Algebra CLEP Practice Questions and Study Guide

To find the slope of perpendicular lines, we use the formula -1/m, where m is the slope of the given line. In this case, the slope of the given line is 4/8 or 1/2. So the slope of the line perpendicular to it would be -1/(1/2) which simplifies to -2. Therefore, option D (-8/4) is the correct answer.

Option A 8/4 is incorrect because this is the slope of the given line, not its perpendicular line.

Option B: -4/8 is incorrect because it is not the correct formula for finding the slope of perpendicular lines.

Option C: 4/8 is incorrect because it is the slope of the given line, not its perpendicular line.