1 markNature of Roots of a Quadratic Equation

CSEC Additional Mathematics · 2016 · Paper 2 · Question 2(a)(i)

Determine the nature of the roots of the quadratic equation 2x² + 3x – 9 = 0.

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2(a)(ii)Given that f(x) = 2x² + 3x – 9, sketch the graph of the quadratic function, clearly indicating the minimum value.[5 marks]
2(b)Evaluate Σ (from n=1 to 25) 3⁻ⁿ.[3 marks]
2(c)Calculate the total dividends on his investment by the end of 2016.[5 marks]

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