(1 point) Let f(a) be the function whose graph is shown below. Determine f' (a) for a = 1, 2, 4, 7. f' (1) = f' (2) = f' (4) = f' (7) =(1 point) Use the given graph of the function to find the x-values for which f is not differentiable. Answer (separate by commas): I = Note: You can click on the graph to enlarge the image.(1 point) The line tangent to the graph of 9(3) = 1'3 4:: + 1 at the paint (2l 1) is given by the formula 12(3) = 8(2 2) + 1. These funcuns are graphed below. Which of the following statements are true? Select all that apply. BA. The functions have the same yintercept DE. The slope ufthe line equalsg'l). DC. The functions are approximately equal on the interval 0.5 5 :I: g 1.0 DD. The slope ofthe line equalsg'(2). DE. The functions are approximately equal on the interval 1.9 g a: 5 2.1 OF. The graphs intersect at the point(2,1). 06. None of the above are true