6. If G(x) = R(x) (F(e)) find G'(2)if F(2) = 5, F'(2) = 7 and R(2) = 9. Round answer to three decimal places. 7. Find by implicit differentiation, 3x2yz = 5x3 + 6y* 8. Use logarithmic differentiation to find y'. y = (4x)secx 9. The graph of the velocity function of a particle is given, where the horizontal axis is measured in seconds. When is the particle speeding up? When is it slowing down