Essentials of Precalculus with Calculus Previews, 6th Edition

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Final Examination

Answers to all these questions are found in the Student Resource Manual.

Try to answer the following questions without referring back to the text.

In Problems 1–20, fill in the blank.

  1. Completing the square in x for 2x² + 6x + 5 gives _____.

  2. In the binomial expansion of (1 − 2x)³ the coefficient of x² is _____.

  3. In interval notation, the solution set of is _____.

  4. If a − 3 is a negative number, then |a − 3| = _____.

  5. If | 5x | = 80, then x = _____.

  6. If (a, b) is a point ...