I know what the shapes are supposed to like on most but have difficulty drawing any tips will be very helpful.

I am supposed to describe, sketch, and identify the surface of the falling:

1) yz = 4

Have no idea.

2) 25x^2+4y^2+z^2=100

Ellipsoid

3) 4x^2-16y^2+z^2=16

hyperboloid of one sheet parallel to the y-axis

4) x^2-y^2+z^2-2x+2y+4z+2=0

hyperboloid of one sheet parallel to y-axis with a vertex of (1,1,-2)