The table shows data describing the hydraulic head in meters of oil and oil use in liters per second for a pump. Let x represent the oil use and let y represent the hydraulic head. The quadratic function of best fit for the data is y = -0.002x² +1.523x-0.128. Oil Use Hydraulic Head 0 0 5 6 7 12 12 18 17 24 20 30 Part: 0/2 Part 1 of 2 Predict the hydraulic head when the oil use is 9 liters per second. Round your answer to three decimal places. The hydraulic head would be __?__ meters.​