17. [0/3 Points] DETAILS PREVIOUS ANSWERS LARAPCALC10 3.3.062.EP. Consider the following function, where R is the revenue (in thousands of dollars) and x is the advertising cost (in thousands of dollars). R = - 1x3+ 3x2+ 2, 05x55 Find R'(x) and R"(x). R ( X ) = (-x3 + 6x) X R" ( X ) = V2 X Find the point of diminishing returns for the function, where R is the revenue (In thousands of dollars) and x Is the advertising cost (in thousands of dollars). Use a graphing utility to verify your results. ( x , R ) = V2 , 7.057 x Need Help? Read It