t2

t

t

t.

,

10.1/1 points | Previous AnswersSCalcET7 13.1.009.Sketch the curve with the given vector equation. Indicate with an arrow the direction in which tincreases.r(t) = t, 8 −t, 2t

11.1/1 points | Previous AnswersSCalcET7 13.1.013.Sketch the curve with the given vector equation. Indicate with an arrow the direction in which tincreases.

t,

6k

= 0.

> 0,

.

12.1/1 points | Previous AnswersSCalcET7 13.1.021.Match the parametric equations with the correct graph.At any point on the curve, so the curve lies on thecircular cone with axis the y-axis. Also notice that the graph is:x= tcos t, y= t, z= tsin t

, t≥0

t= t2= y2

0;