# SOLUTION: The crop yield, Y, (in bushels) for various amounts, x (in pounds per 100 square feet) of fertilizer used in 18 different plots of land is as shown in the table below. The graph o

Algebra ->  Algebra  -> Rational-functions -> SOLUTION: The crop yield, Y, (in bushels) for various amounts, x (in pounds per 100 square feet) of fertilizer used in 18 different plots of land is as shown in the table below. The graph o      Log On

 Ad: Algebrator™ solves your algebra problems and provides step-by-step explanations! Ad: Algebra Solved!™: algebra software solves algebra homework problems with step-by-step help!

 Algebra: Rational Functions, analyzing and graphing Solvers Lessons Answers archive Quiz In Depth

 Click here to see ALL problems on Rational-functions Question 101813: The crop yield, Y, (in bushels) for various amounts, x (in pounds per 100 square feet) of fertilizer used in 18 different plots of land is as shown in the table below. The graph of the data can be modeled by Y(x)=-0.017x^2+1.0765x + 3.8939. Plot / Fertilizer (x) / Yield - Y(x) 1 0 4 2 0 6 3 5 10 4 5 7 5 10 12 6 10 10 7 15 15 8 15 17 9 20 18 10 20 21 11 25 20 12 25 21 13 30 21 14 30 22 15 35 21 16 35 20 17 40 19 18 40 19 based on the data and the quadratic model, what is the optimal amount of fertilizer to apply for maximum crop yield? Explain or show how you decided. Answer by stanbon(57304)   (Show Source): You can put this solution on YOUR website!The crop yield, Y, (in bushels) for various amounts, x (in pounds per 100 square feet) of fertilizer used in 18 different plots of land is as shown in the table below. The graph of the data can be modeled by Y(x)=-0.017x^2+1.0765x + 3.8939 What is the optimal amount of fertilizer to apply for maximum crop yield? ------------ The max crop yield occurs when x=-b/2a = -[1.0765]/[-2*0.017] = 31 lbs per 100 square feet) ============================== Cheers, Stan H. Explain or show how you decided.