Respuesta :
to find this out you would add them together and then divide by two:
(-5)+15= 10
10/2=5
(-18)+8=(-10)
-10/2=5
so your points would be 5,-5. you would add your x values and divide it by two and then your y values and divide them by two
(-5)+15= 10
10/2=5
(-18)+8=(-10)
-10/2=5
so your points would be 5,-5. you would add your x values and divide it by two and then your y values and divide them by two