[-/1 Points] DETAILS MY NOTES Math 110 Course Resources - Curve Sketching Course Packet on points of diminishing & increasing returns The total monthly revenue R(x) generated from sales of Math t-shirts is related to the amount x spent on advertising by R(x)= 3x - 18x2- 693x + 5858 where x is in thousands of dollars and OS x $ 11. Which one of the following statements is true? There are no points of increasing or diminishing returns. $2000 is a point of diminishing returns. $1000 is a point of diminishing returns. $1000 is a point of increasing returns. $2000 is a point of increasing returns. MY NOTES 12. [-/1 Points] DETAILS Math 110 Course Resources - Curve Sketching Course Packet on classifying critical points using the second derivative test Use the second derivative test to determine the x-coordinates of the relative extrema of the function g(x) = x4 - 8x3 - 80x2 - 3. Enter each answer as a comma-separated list of values. The order of the values does not matter. Enter DNE if g(x) does not have any relative maximum or minimum values, respectively. x-coordinates of the relative maxima = x-coordinates of the relative minima =