6.Which of the following integrals correctly corresponds to the area of the shaded region in the figure
above?
(A) (x^2 − 4) dx(B) (4 − x^2 ) dx(C) (x^2 − 4) dx(D) (4 − x^2 ) dx7.If h(x) = f(x)g(4x), then h′(2) =
(A)f′(2)g′(8)
(B)f′(2)g(8) + 4f(2)g′(8)
(C)f′(2)g(8) + f(2)g′(8)
(D) 4 f′(2)g′(8)8.An equation of the line normal to the graph of y = at (2, 4) is
(A) 4 x + 7y = 20
(B)−7x + 4y = 2