6. What does it mean when variables in MATLAB are vectors or scalars, explain briefly? Show an example command that creates a vector from 20 to 46 in one row (1 x 27 matrix) and in one column (27 x1 matrix) 7. 8. Show an example command that creates a vector from 1 to 15 in which the elements are separated by 2 9. Show four different ways that you can create the following vector: 5 6 7 8