Post-UTME Mathematics 2015 Objective — Question 1
Question 1 of 40 from the Post-UTME Screening (Post-UTME) Mathematics 2015 Objective paper, with the correct answer and a full explanation.
Advertisement
The turning point of the curve y = 6 - 4x - x^2 occurs at
- A. (-2, 10)Correct
- B. (0, 6)
- C. (2, -6)
- D. (4, -26)
Explanation
dy/dx = -4-2x = 0, so x=-2. y = 6-4(-2)-(-2)^2 = 6+8-4 = 10. Turning point (-2, 10).
Advertisement
Sign up free to unlock
- Score tracking
- Practice history
- Saved questions
- Progress dashboard
- Personalized sessions
- Weak-topic breakdown
…and/or go further with premium services and No Ads.