Question

suppose 4x^2 + 9y^2 = 36 where x and y are functions of t. a) if dy/dt= 1/3, find dx/dt when x=2 and y= (2/3)*(square root of 5) b) if dx/dt= 3 find dy/dt when x= -2 and y= (2/3)*(square root of 5)