College Math CLEP Prep Practice Exam

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What is the equation of a vertical line that passes through the point (3,2)?

y=2
x=3
y=-2
x=-2

The correct answer is: x=3

A vertical line has a slope that is undefined, and the equation is therefore x=a, where "a" is any number. In this case, since the line passes through the point (3,2), the correct equation would be x=3. Option A, y=2, is the equation of a horizontal line passing through the point (0,2). Option C, y=-2, is the equation of a horizontal line passing through the point (0,-2). Option D, x=-2, is the equation of a vertical line passing through the point (-2,0). Therefore, B is the only correct option for a vertical line passing through the point (3,2).