What is the Volume of the shape below?

Ijust need to see how to do this. so you don’t have to answer all of them just a step by step explanation of one.

Sketch the vector field vector f( vector r ) = 8vector r in the xy-plane. select all that apply. the length of each vector is 8. the lengths of the vectors decrease as you move away from the origin. all the vectors point away from the origin. all the vectors point in the same direction. all the vectors point towards the origin. the lengths of the vectors increase as you move away from the origin.

Which of the following parabolas opens up?