Question 28
DifferentiationThe minimum value of y in the equation y = x2 − 6x + 8 is
- A.8
- B.3
- C.0
- D.−1
Show the answer and explanation
Answer: D (−1)
Explanation
dy/dx = 2x − 6 = 0 at x = 3. Then y = 9 − 18 + 8 = −1.
The minimum value of y in the equation y = x2 − 6x + 8 is
Answer: D (−1)
dy/dx = 2x − 6 = 0 at x = 3. Then y = 9 − 18 + 8 = −1.