You can put this solution on YOUR website!
12. (0,4,0)
Move 0 units on the x axis
Move +4 units on the y axis
Move 0 units on the z axis
.
.
.
13. (-4,0,0)
Move -4 units on the x axis
Move 0 units on the y axis
Move 0 units on the z axis
.
.
.
14. (2,0,5)
Move +2 units on the x axis
Move 0 units on the y axis
Move +5 units on the z axis
.
.
.
There's three of them.
Hopefully that's given you enough information to complete the remaining problems.
Drawing 3D points on a 2D page can be difficult and you have to gain a sense of perspective.
It was definitely a challenge to come up with these 3 graphs on the computer screen.
Good luck!