2. For the line segment DE, one endpoint is D(3, 1) and the midpoint is M(0, -4). Find the coordinates of the other endpoint E.
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Formula for finding a mid point is:
X-coordinate of the midpoint=(x1+x2)/2
y-coordinate of the midpoint=(y1+y2)/2
Where (x1,y1) are the end points of a line segement on one end and (x2,y2) are the end points of on the other end.
Keeping the above formula in mind we get:
D(3,1) and M(0,-4)
0=(3+x2)/2
0=3+x2
therefore x2=-3
-4=(1+y2)/2
-8=1+y2
-8-1=y2
therefore y2=-9
So the coordinates for E are(-3,-9)
answered 6 months ago
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