CSEC Mathematics · January 2014 · Paper 2 · Question 9(b)(ii)b)
For the function y = x² + bx + c.
Show that b = -4.
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Practise this questionOther parts of this question
- 9(a)(i)a)Evaluate g(4).[1 mark]
- 9(a)(i)b)Evaluate hg(4).[2 marks]
- 9(a)(ii)a)Write an expression in x for h⁻¹(x).[4 marks]
- 9(a)(ii)b)Write an expression in x for gg(x).[4 marks]
- 9(b)(i)State the roots of the equation x² + bx + c = 0.[2 marks]
- 9(b)(ii)a)Determine the value of c.[2 marks]
- 9(b)(iii)State the coordinates of the MINIMUM point on the graph of the function y = x² + bx + c.[2 marks]
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