1.

A vector-valued function r (t) = represents a O space curve O solid O surface O planar curveGiven the function f (1:, y) = :32 + y, what types of curves are the level curves of this function? 0 Circles Parabolas O Hyperbolas O Ellipses Given 4x2 - 2y - 22 = 16, find the trace of the surface on the yz- plane. O Parabola O Hyperbola O Circle O There is no trace. O Ellipse