Find the critical points of .

Answer and explanation

Correct answer: B. and

  1. Step 1: Find by differentiating: .
  2. Step 2: Set to locate critical points: .
  3. Step 3: Factor the quadratic equation: or .
Answer
and .
Why not the others: ' and ' factors ; ' and ' factors ; ' only' fails to identify the second root.

Practise more Differentiation.

Free questions with an explanation for every one, and full timed AP (Advanced Placement) mock tests.

All Differentiation questionsTake a mock test

More Differentiation questions

Revise with flashcards