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 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