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question 4 - 5 please 4. Consider the function shown in the graph, where f (x) = = x3 + 2x2 -6 a. Draw a

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question 4 - 5 please

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4. Consider the function shown in the graph, where f (x) = = x3 + 2x2 -6 a. Draw a sign diagram for f' (x) b. Determine the turning points algebraically 5. Consider the function y = x3 - 7x a. Find ly dx b. Hence, find the point(s) on the graph where the tangent has gradient (slope) of 5

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