Suppose that f(x) is a solution to the differential equation dy/dx = 2x - y. Are the following true or false?

(a) The slope of the graph of f at (a,b) is 2a-b.
(b) f'(x) = 2x - f (x)
(c) There could be more than one value of x such that f'(x) = 1 and f(x) = 5. ddy
(d) If y = f(x) then d²y/dx² = 2-(2x - y). 072
(e) The graph of f is decreasing whenever it lies above the y = 2x line and is increasing whenever it lies below the y= 2x line.
(f) If. f(1) = 5, then (1,5) could be a critical point of f.