College Algebra CLEP Prep Practice Exam

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Gear up for success on the College Algebra CLEP exam with our comprehensive Prep Practice Exam! Whether you're a math whiz or need a little extra support, our resources are here to help you excel and earn college credit.

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

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.