OCR Mechanics 1 2018 December — Question 2

Exam BoardOCR
ModuleMechanics 1 (Mechanics 1)
Year2018
SessionDecember
TopicCurve Sketching
TypeFind stationary points of polynomial
2 In this question you must show detailed reasoning. Find the values of \(x\) for which the gradient of the curve \(y = \frac { 2 } { 3 } x ^ { 3 } + \frac { 5 } { 2 } x ^ { 2 } - 3 x + 7\) is positive. Give your answer in set notation.
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