Consider the set of all points (x, y) in the coordinate plane for which one of the coordinates is exactly twice the other. if we were to plot all such points, into how many regions would the resulting graph split up the plane?

If x is twice that of y, then x = 2y forming one possible equation. This plots a straight line through the points
(0,0)
(2,1)
(4,2)
etc etc. Basically whatever y is, double it to get x

Another possible equation is y = 2x which is a straight line through the points
(0,0)
(1,2)
(2,4)
etc. The flip of the other list of points above. 

Because it is not clear which coordinate is doubled, we can't say for sure which equation we'll pick. However, we only pick one equation. This one equation produces only one line that splits the xy plane into two parts. So there are 2 regions. 

You have 2 sides that are 2 cms and you have 6 sides that are 1/2 cm and you have 4 sides that are 1 cm. the smallest sides are 1/2 the medium sized sides are 1 and the smallest are 1/2. so to find the perimeter you have to add them all up together so your answer will be 11 cm's

Where the white dots are is where your points should be plotted.a translation is simply just moving something from one place to another. in this case, you would move each plot point of the original shape 2 units up, and 5 units to the left.