Question 39
DifferentiationIf y = 3t3 + 2t2 − 7t + 3, find dy/dt at t = −1
- A.−1
- B.1
- C.−2
- D.2
Show the answer and explanation
Answer: C (−2)
Explanation
dy/dt = 9t² + 4t − 7. At t = −1: 9 − 4 − 7 = −2.
If y = 3t3 + 2t2 − 7t + 3, find dy/dt at t = −1
Answer: C (−2)
dy/dt = 9t² + 4t − 7. At t = −1: 9 − 4 − 7 = −2.