If the endpoints of DE where D(-3, y) and E(x, 6) with the midpoint M(4, 2), the length of DE is 16.12 units
The formula for calculating the midpoint is expressed as;

For the x-coordinate points:
X = -3+x/2
4 * 2 = -3 + x
8 = -3 + x
x = 8 + 3
x = 11
Get the value of y;
2 = y+6/2
y+6 = 2 * 2
y + 6 = 4
y = 4 - 6
y = -2
Hence the coordinates of D and E are D(-3, -2) and E(11, 6)

Hence the length of DE is 16.12 units
Learn more here; brainly.com/question/22624745
Answer:
B
Step-by-step explanation:
coordinates are (x,y)
so all you need to do is put the x and y coordinates in
so example (0,4) (1,6)
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Answer:
The correct answer is letter C.
Step-by-step explanation:
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Answer:
C+B
Step-by-step explanation:
you add A + B = C