Find the -coordinate of the local minimum of .
Answer and explanation
Correct answer: B. 5
- Step 1: gives . Since is positive at , the local minimum is at . Answer: 5. Why not the others: -5: gives the local maximum instead. 0: evaluates the function at zero. 25: squares the answer.
Practise more Calculus, algebra, series and probability.
Free questions with an explanation for every one, and full timed Stúdentspróf (Iceland) mock tests.