Homework Sheet Assignment | Assignment Help Services
So I need reassurance for the first answer and the other two I don’t know how to do from my homework sheet, please help. a. use the derivative of f(x)= 3x^3+ 9x to determine any points on the graph of f(x) at which the tangent line is horizontal. so I got (1,12) and (-1,-12) I dont know if thats right b. If f(x)=-3x^2-4x, find the …
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