College Algebra CLEP Prep Practice Exam

Disable ads (and more) with a membership for a one time $2.99 payment

Prepare for the College Algebra CLEP exam with our comprehensive quiz. Our engaging questions, hints, and detailed explanations will help ensure you're ready to ace your test and earn college credit faster!

Practice this question and more.

Which of the following is the equation of the vertical line x = -2?

x + 2 = 0
y + 2 = 0
x - 2 = 0
y - 2 = 0

The correct answer is: x - 2 = 0

A and B are incorrect because they are not equations of a vertical line. Instead, they are equations of horizontal lines. A has a slope of -1 and y-intercept of -2, while B has a slope of 1 and y-intercept of -2, which means they both have a zero slope. D is also incorrect because it is the equation of a horizontal line with a slope of 0 and y-intercept of 2, which means it is not parallel to the x-axis like the given equation. The equation of a vertical line is always x = a, where a is a constant. Therefore, only C is the equation of a vertical line with x = -2. This means that on a graph, the line would be a straight, vertical line passing through the point (-2, x) for all values of x.