Most popular questions and responses by Denay
  1. Algebra

    When solving a rational equation, why is it necessary to perform a check?

    asked on September 3, 2009
  2. Math117

    Why is it important to simplify radical expressions before adding or subtracting? How is adding radical expressions similar to adding polynomial expressions? How is it different?

    asked on September 8, 2009
  3. 116 Algebra

    Describe what the graph of interval [-4,10] looks like.

    asked on March 27, 2009