exam Maths Puzzle Numerical Ability

graph each funtion. find any local maxima or minima to the nearest tenth. find the intervals over which the funtion is increasing and decreasing.

19)p(x)=x^3-4x;-8<_x<-8

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exam Other Question

For each of the following, find the vertex by completing the square:
a) y=-3x^2-6x+4
b) y=4x^2-12x-2
c) y=1/3x^2+2x-1
CAn someone please help me ?? YOU ARE EARNING AN AVERAGE OF $46,500 AND WILL RETIRE IN 10 YEARS. IF YOU PUT 20% OF YOUR GROSS AVERAGE INCOME IN AN ORDINARY ANNUITY COMPOUNDED AT 7% ANNUALLY, WHAT WILL BE THE V