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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What is the y-intercept of the equation y = x2 - 2x - 6 ?

–6
–2
0
6

The correct answer is: –6

The y-intercept of an equation is the point where it crosses the y-axis. Therefore, the y-intercept of the given equation can be found by setting x=0 and solving for y. Option A, -6, is the correct y-intercept of the given equation because when you substitute x=0 in the equation, you get y=0-0-6=-6. Option B, -2, is the constant coefficient of x, and not the y-intercept. Option C, 0, does not have a y-term, so it cannot be the y-intercept. Option D, 6, is the y-value when x=5. However, in order to find the y-intercept, we set x=0 and not x=5. Therefore, it is incorrect.