Question

Answer the questions about the given function.
25) f(x) =2x^2-x-1
(a) Is the point (-1,2) on the graph of f?
(b) If x= -2, what is f(x)? What point(s) are on the graph of f?
(c) If f(x)= -1, what is x? What point(s) are on the graph of f?
(d) What is the domain of f?
(e) List the x-intercepts,if any, of the graphs of f.
(f) List the y-intercept, there is one, of the graph of f.