CSEC Additional Mathematics · 2018 · Paper 2 · Question 1(b)
Derive the polynomial, P(x), of degree 3 which has roots equal to 1, 2 and -4.
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Practise this questionOther parts of this question
- 1(a)(i)Find the inverse function, f⁻¹(x), stating its domain.[4 marks]
- 1(a)(ii)On the grid provided below, sketch f⁻¹(x).[2 marks]
- 1(a)(iii)State the relationship between f(x) and f⁻¹(x).[2 marks]
- 1(c)(i)Use logarithms to derive an equation of the form y = mx + c that can be used to find the values of k and a.[2 marks]
- 1(c)(ii)If a graph of y versus x from the equation in Part (c) (i) is plotted, a straight line is obtained. State an expression for the gradient of the graph.[1 mark]
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