Respuesta :

Answer:

(-5, 4.5)

Step-by-step explanation:

to find the midpoint we use the formula (x1 + x2)/2 and (y1 + y2)/2

we plug in the points

-1 + -9 = -10/2 = -5

-2 + 11 = 9/2 = 4.5

and your answer is

(-5, 4.5)

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