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 vertex of the parabola y = 2x2 + 4x - 5?

0, -5
1, -5
-2, -5
-1, -5

The correct answer is: -2, -5

The vertex of a parabola represents the highest or lowest point of the curve, also known as the maximum or minimum point. In the standard form of a parabola, y = ax^2 + bx + c, the vertex can be found by using the formula (-b/2a, -[b^2-4ac]/4a). In this case, the coefficient of x^2 is 2 and the coefficient of x is 4. Using the formula, we get (-4/2*2, -[4^2-4*2*-5]/4*2) = (-2, -24/8) = (-2, -3). A, B, and D are incorrect because the first coordinate does not match the x-coordinate of the vertex and the second coordinate does not match the y-coordinate of the vertex. Keep in mind that