Question 11 of 15 Assuming that the equation defines x and y implicitly as differentiable functions x = f(t), y = g(t), find the slope of the curve x = f(t), y = g(t) at the given value of t. x* + 4t- = 65, 2y - 41 = 64, t= 4 The slope of the curve at t = 4 is . (Type an integer or simplified fraction.)