:1. Find the derivative metinrl f\"I for the function f. 1:. Find an equation of the line tangent to the graph of f at [a, Hail} fur the given value of a. 11} rm: x13 :a=v1 Find the second derivative of the function. q+3 q+ 12 = )p [ q L2] Prueide an appropriate respnnse. 13} Find all points Er. y] an the graph of y = 1with tangent lines perpendicular to the Iiney = 4x - I. ix- 4]