The midpoint of segment QR is M(-2, 9). One end point of segment QR is Q(-8, 12). Find the coordinates of the other endpoint, R.

Here,

The midpoint of segment QR is M

m(-2,9) x3=-2,y3=9

Q=(-8,12)x1=-8,y1=12

R=x2,y2

we know that,

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So,

x3= ⠀

⠀

⠀

⠀

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x2=4

now we find the y coordinate y2.

y3= ⠀

⠀

⠀

⠀

⠀

y2=6

Now we get the two coordinate of R

so,

R=(x2,y2)=(4,6)

mr. graef told us it is 13 pints

step-by-step explanation:

the answer is c

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