College Algebra CLEP Prep Practice Exam

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Prepare for the College Algebra CLEP Test with our comprehensive practice exam. Study with flashcards and multiple choice questions, each offering clues and detailed explanations. Achieve your best score and excel in your exam!

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In the xy-plane, which of the following is the equation of a line that passes through the origin and is perpendicular to the line y=2x+3?

y=-1/2x
y=1/2x
y=2x-3
y=-2x+3

The correct answer is: y=1/2x

A does not pass through the origin. C and D are parallel to y=2x+3 and therefore cannot be perpendicular to it. B is the only option that passes through the origin and has a slope of -1/2, making it perpendicular to the line y=2x+3 which has a slope of 2. The negative reciprocal of 2 is -1/2.