Olá, tudo bem? Vamos utilizar a fórmula do ponto médio(Pm):
[tex]\boldsymbol{P_{m}=\left(\dfrac{x_{A}+x_{B}}{2};\,\,\dfrac{y_{A}+y_{B}}{2}\right)}[/tex]
Assim:
[tex]\boldsymbol{P_{m}=\left(\dfrac{5+(-1)}{2};\,\,\dfrac{-2+(-4)}{2}\right)}\to\\\\\\\boldsymbol{P_{m}=\left(\dfrac{4}{2};\,\,\dfrac{-6}{2}\right)}\to\boldsymbol{P_{m}=(2;\,-3)\,\checkmark}[/tex]
É isso!! :)
