if someone would explain how to do this and give me the final answer that would be nice if you, i just don’t know how to work it out

if someone would explain how to do this and give me the final answer that would be nice if you i just dont know how to work it out class=
Relax

Respuesta :

I think it’s 7 as the y coordinate stays the same so it’s the difference between -4 and 3 which is 7 :)