College Algebra CLEP Prep Practice Exam

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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!

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What is the domain of the function y = x2 - 4x + 3?

-∞ < x < ∞
-3 < x < ∞
-2 < x < 3
0 < x < 3

The correct answer is: -∞ < x < ∞

A domain represents all possible values of the independent variable in a given function. In this case, the function is a polynomial, which means it is defined for all real numbers. Therefore, the correct domain for this function is -∞ < x < ∞. Option B is incorrect because it only includes values larger than -3, when in fact the function is also defined for values less than -3. Option C and D are incorrect because they limit the domain to specific regions, -2 < x < 3 for option C and 0 < x < 3 for option D. These ranges do not cover all possible values of x for the given function. Overall, the correct domain for this function is A because it includes all real numbers, whereas the other options limit the domain unnecessarily.