Assume that x and y are both differentiable functions of t and find the required values of dy/dt and dx/dt. xy = 4 (a) Find dy/dt, given x = 2 and dx/dt = 15. dy/ dt = (b) Find dx/dt, given x = 1 and dy/dt = -9. dx/dt = Submit Answer 1/2 Points] DETAILS PREVIOUS ANSWERS LARSONET5 3.7.002. Assume that x and y are both differentiable functions of t and find the required values of dy/dt and dx/dt. y = 2 (x2 - 3x) (a) Find dy/dt when x = 4, given that dx/dt = 1. dy/dt = 10 (b) Find dx/dt when x = 8, given that dy/dt = 5. dx/ dt = 50 X