Consider the following parametric curve. Use the information to answer parts (a) and (b). It x=cost, y=35int;t= - . dy . . . (a) Determine In terms oft and evaluate It at the given value oft. dx Find an equation of the line tangent to the curve at the point corresponding to the given value of t. x=t2-8,y=t3+6t;t=4 1111: Sketch the set of points such that 9 = T' Choose the correct graph below