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19. Given: f(x)=x+4x2−2x+1​,f′(x)=(x+4)2x2+8x−9​&f′′(x)=(x+4)350​, determine (if applicable): i) The equation(s) of the vertical, horizontal and/or slant asymptotes. Don't forget the behaviours of the graph near the asymptotes. [4 Marks] ii) The x and y intercepts [2 Marks]
iii) The intervals of increase and decrease \& maximum and minimum values. [4 Marks] iv) The intervals of concavity \& point(s) of inflection [3 Marks] v) Sketch the curve on the graph provided: [2 Marks]