Answer:
17 units
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 ) = A(- 6, - 4) and (x₂, y₂ ) = B(9, - 12)
AB = [tex]\sqrt{(9+6)^2+(-12+4)^2}[/tex]
= [tex]\sqrt{15^2+(-8)^2}[/tex]
= [tex]\sqrt{225+64}[/tex]
= [tex]\sqrt{289}[/tex]
= 17 units
