Number 6

for each correct answer. 1. (15 points) Given: 4x4 + 8x2y2 + 4y4 = 36x2 - 36y2. Find yl =- dy dx 2. (15 points) Find the slope of the tangent line to the curve y = f(x) = 8 at x = 2. x2+x+2 3. (15 points) Find lim x2 - 64 8 -x 4. (15 points) Find the derivative of y = f(x) = (1 + e&) 5 5. (15 points) The demand equation for a certain commodity is given by p = 12 x2 - 12x + 432, 0