Question

Find the midpoint of the segment with the given endpoints. ​(9​,9​) and ​(-1​,-3​)

Answer 1

Answer is (4,3)

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Add up the x coordinates to get 9+(-1) = 8. Divide this over two and we end up with 8/2 = 4

Repeat for the y coordinates: 9+(-3) = 6, which cuts in half to get 6/2 = 3

The midpoint is at (4,3)

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The midpoint formula is

$\left(\frac{x_1+x_2}{2},\frac{y_1+y_2}{2}\right)$ where (x1,y1) and (x2,y2) are the endpoints.