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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Which is the inverse of y = 4x + 3?

y = 4/x + 3
y = -4/x + 3
y = 4x - 3
y = 4/x - 3

The correct answer is: y = 4/x - 3

An inverse function is a function that does the opposite of the original function. Therefore, the inverse of y = 4x + 3 would involve reversing the operations and solving for x. In choice A, the division of 4 and x are reversed, but the constant term 3 is still added. Similarly in choice B, the division is reversed but the coefficient of x is changed to -4. In choice C, the addition of 3 is reversed, but the coefficient of x is changed to 4. Choice D is the only option that both reverses the operation and keeps the correct coefficient of x. Therefore, it is the correct inverse function for y = 4x + 3.