Question 12
DifferentiationFind the minimum value of y = x2 + 6x − 12.
- A.−21
- B.−12
- C.−6
- D.−3
Show the answer and explanation
Answer: A (−21)
Explanation
dy/dx = 2x + 6 = 0 at x = −3; y = 9 − 18 − 12 = −21.
Find the minimum value of y = x2 + 6x − 12.
Answer: A (−21)
dy/dx = 2x + 6 = 0 at x = −3; y = 9 − 18 − 12 = −21.