College Algebra CLEP Prep Practice Exam 2025 – The All-in-One Resource for Exam Success!

A) This is the slope of the original line, but not the line perpendicular to it.

B) This is the y-intercept of the original line, but not relevant to finding the slope of a perpendicular line.

D) This is the negative y-intercept of the original line, but not relevant to finding the slope of a perpendicular line.

The slope of a perpendicular line would have to be the negative reciprocal of the original line's slope, which in this case is -5. This means that if you were to graph these two lines on the same coordinate plane, they would intersect at a 90 degree angle. Therefore, C is the correct answer.