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Question of the Day for 4/4/2026
 
Subject: Calculus


The function Æ’, whose graph consists of two line segments, is shown below. Which of the following are true for Æ’ on the open interval (a, b)?
I. The domain of the derivative of Æ’ is the open interval (a, b).
II. Æ’ is continuous on the open interval (a, b).
III. The derivative of Æ’ is positive on the open interval (a, c)


  1. I only
  2. II only
  3. III only
  4. II and III
  5. I, II, and III

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