Use the function f(x) to answer the questions f(x)=2x2-x-10 Part A: what are the x-intercepts of the graph of f(x)? show your work.

Part B: is the vertex if the graph of f(x) going to be a maximum or minimum? What are the coordinates of the vertex? Justify your answers and show your work.

Part C: What are the steps you would use to graph f(x)? Justify that you can use the answers obtained in Part A and Part B to draw the graph.
(I already solved part A I need help with B and C)