Answer:
13 units
Step-by-step explanation:
Here we need to use the distance formula.
Hence we get that,
AB = [tex]\sqrt{(-8-4)^2 + (4-(-1))^2}[/tex]
AB = [tex]\sqrt{(-12)^2 + 5^2}[/tex]
AB = [tex]\sqrt{144 + 25}[/tex]
AB = [tex]\sqrt{169}[/tex]
AB = 13
