Answer:
A
Step-by-step explanation:
Calculate the distance using the distance formula
d = [tex]\sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2 }[/tex]
with (x₁, y₁ ) = (7, 4 ) and (x₂, y₂ ) = (- 1, - 4 )
d = [tex]\sqrt{(-4-4)^2+(-1-7)^2}[/tex]
= [tex]\sqrt{(-8)^2+(-8)^2}[/tex]
= [tex]\sqrt{64+64}[/tex]
= [tex]\sqrt{128}[/tex]
≈ 11.31 ( to 2 dec. places )
