CSEC Additional Mathematics · 2014 · Paper 2 · Question 2(a)(ii)
Given that f(x) = -2x² - 12x – 9.
State the maximum value of f(x).
The mark scheme is shown once you've answered.
Practise this questionOther parts of this question
- 2(a)(i)Express f(x) in the form k+ a (x+h)², where a, h and k are integers to be determined.[3 marks]
- 2(a)(iii)Determine the value of x for which f(x) is a maximum.[1 mark]
- 2(b)Find the set of values of x for which 3 + 5x - 2x² ≤ 0.[4 marks]
- 2(c)(i)Show that this series is geometric.[3 marks]
- 2(c)(ii)Find the sum to infinity of this series, giving your answer as an exact fraction.[2 marks]
More practice: the rest of this paper · more Maximum/Minimum Values and Range of Quadratic Functions questions · all CSEC Additional Mathematics past papers