Respuesta :

Answer:the length is 10

Step-by-step explanation:

since m is the midpoint it is 3 away from y on the x axis and 4 away on the y axis

so if you go the same distance away from the midpoint you get -2, 11

so -2 is 6 away from 4 away and 3 is 8 away from 11

6^2  = 36

8^2 = 64

36+64= 100

the square root of 100 is 10