Post-UTME Physics 2011 Objective — Question 12
Question 12 of 16 from the Post-UTME Screening (Post-UTME) Physics 2011 Objective paper, with the correct answer and a full explanation.
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At what value of x is the function y=x^2-2x-3 minimum?
- A. 1Correct
- B. -1
- C. -4
- D. 4
Explanation
Minimum occurs at x=-b/2a=1. (Note: this question is a near-duplicate of one found in the FUTO 2013/2014 Type D session in this same PDF set; the same independently-worked answer is used here.)
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