Sorry to trouble you, I'm looking at this question and I'm a bit overwhelmed

SHOW WORK and justify your answers Sketch the graph of the function below by determining the appropriate information and the points using the first and second derivatives. f(x) = -723 -2x2+x+4 a) What are the (x,y) coordinates of the local (relative) maximum for f ()? Use a comma to separate answers as needed. Round answers to 2 decimal places b) What are the (x,y) coordinates of the local (relative) minimum for f (x)? Use a comma to separate answers as needed. Round answers to 2 decimal places c) What are the (x,y) coordinates of the inflection point for f (x)? Use a comma to separate answers as needed. Round answers to 2 decimal places