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B is the midpoint of segment AC on the coordinate plane. The coordinates of the 3 points are:
A (-4,5), B (x, 2), and C' (9,y). What are the values of x and y?

Respuesta :

Step-by-step explanation:

b is midpoint

x1=-4 x2=9

y1=5 y2=y

so

x=(x1+x2)/2

x=(-4+9)/2

=5/2

2=(y1+y2)/2

2=(5+y)/2

2×2=5+y

4-5=y

y=-1

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