The distance between the x values is 4 and the distance between the y values is 10...
divide the distance between the x values and the y values
add 2 to the 4 on x
add 5 to the 2 on y
gives us the midway point of (4, 7)
You first have to distribute correctly so it simplifies is 15+3n
8 223/285 I think that is the right answer if no i am sorry
Let me start from the meaning of half plane.you must have learned that there are two axes X and Y axes which includes positive X axes and negative X axes and there is positive Y axes and negative y axes. So there are four quadrants which i have explained in the figure. I have explained the meaning of Half plane in the Diagram also. Half plane=Figure obtained by covering any two adjacent regions of the coordinate axes.So we get four half planes.
Now your question is k is a half plane determined by QR, such that 0<x≤180 and there is exactly one ray QRP that lies in k
So, 