1. Suppose that x = x(t) and y = y (t) are both functions of t. If x^2+ xy = 10, and dx/dt = 5 when x = 2 and y = 3, what is dy/ dt? dy/dt= 2. Suppose that x = x(t) and y = y(t) are both functions of t. If y^2 +x = 5 and dy/dt = -5 when x= 1 and y = - 2, what is dx / dt