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 represented by the equation y = -5x2 + 4x + 6?

  1. (2,-2)

  2. (2,2)

  3. (-2,2)

  4. (-2,-2)

The correct answer is: (2,-2)

The vertex form of a parabola is y = a(x-h)2 + k, where (h,k) is the vertex. In this equation, a=-5, so the parabola opens downwards. Therefore, the vertex will be the maximum point on the parabola. (2,2) is incorrect because it would represent the minimum point on the parabola. (-2,2) and (-2,-2) are incorrect because the x-value is negative, which would result in the parabola opening to the left. Therefore, the correct answer is (2,-2).

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