1) is (3,0) in the same location as (0,3) if you were to graph them? why or why not 2)give the coordinates of a point such that if the coordinates are reversed, the location is the same. 3) in general, what points can have the coordinates reversed and have the same location?

1) No the locations are not the same. To get to the point (3,0), you would move 3 units to the right of the origin. To get to (0,3), you would move 3 units up from the origin. The origin is the starting point every time to help set a frame of reference.

2) The origin (0,0) is the only point in which you can reverse the coordinates and have the same location

3) This is basically a repeat of problem 2 above. The same answer (0,0) which is the origin applies here. 

see below

Step-by-step explanation:

11a   -2(x^2 -3)

Distribute

-2*x^2 -2(-3)

-2x^2 +6

11b  2x(x+4)

 Distribute

2x*x +2x*4

2x^2 +8x

12 The perimeter is the sum of all sides

The top is equal to the bottom and the left side is equal to the right

x-10 + x+20+x-10+x+20

Combine like terms

4x +20