Question 1065351
Start at ( -4,0 )
5 units north means that the y-coordinate increases
but the x-coordinate does not change, so
5 units north is at 
{ -4 , 0 )
y1 = 0 + 5 
y1 = 5 
( -4, 5 ) 
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6 units east means that the x-coordinate increases,
but the y-coordinate does not change, so
6 units east is at
{ x1, 0 }
x1 = -4 + 6
x1 = 2
( 2, 0 )
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( is this 7 units south? I'm guessing it is )
7 units south means that the y-coordinate decreases,
but the x-coordinate does not change, so
7 units south is at
(  -4, y2 )
y2 = 0 - 7 
y2 = -7
( -4, -7 )
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Hope this helps